Great Falls, MT

47.473°N, 111.383°W · station GTFthr · 1891–2026 · 136 years · normal 14.8 in/yr

The Accumulation Ribbon

Every day of the year at Great Falls: how the rain adds up. The filled curve is the normal running total; the dashed lines are the wettest (1975) and driest (1904) years on record; the white line is 2026 so far.

Normal to date Wettest / driest year 2026 so far normal annual 14.8 in

All-Time Extremes

Wettest day ever

3.36in

Jun 23, 1907

Wettest month ever

8.13in

May 1953

Wettest year

25.2in

1975 · mean 14.8 in

Driest year

6.7in

1904 · mean 14.8 in

Longest dry streak

62 days

< 0.01 in · ended 1907-12-07

Longest wet streak

18 days

≥ 0.01 in · ended 1927-06-03

Records by Month

Month	Wettest day	Normal	Wettest month
Jan	0.72″ Jan 2, 1955	0.58″	2.05″ 1969
Feb	0.93″ Feb 12, 1897	0.53″	2.58″ 2019
Mar	1.09″ Mar 13, 1896	0.79″	2.27″ 1908
Apr	2.20″ Apr 30, 1951	1.11″	4.63″ 1975
May	2.75″ May 15, 1902	2.14″	8.13″ 1953
Jun	3.36″ Jun 23, 1907	2.58″	8.01″ 1923
Jul	1.61″ Jul 10, 1983	1.04″	5.45″ 1909
Aug	2.87″ Aug 23, 2014	0.89″	5.34″ 1933
Sep	1.56″ Sep 27, 1982	1.18″	3.56″ 1941
Oct	2.28″ Oct 3, 2015	0.78″	3.43″ 1975
Nov	1.14″ Nov 23, 1892	0.50″	2.27″ 1955
Dec	0.77″ Dec 14, 2015	0.52″	2.49″ 1917

Record Daily Rainfall

The heaviest one-day rainfall ever recorded on each calendar date — when Great Falls's big rains fall.

Year by Year

Wettest years

1975	25.24 in
1909	23.73 in
1993	23.01 in
1989	22.37 in
1906	22.27 in

The Full Record

Every day of the year: normal daily precip, the record one-day total with its year, how often it rains, and the cumulative normal. Type to filter, click a column to sort.

Show me the data — the full daily record

Date	Normal	Record 1-day	Yr	Wet-day %	Cum. normal
Jan 1	0.02″	0.33″	1968	31%	0.02″
Jan 2	0.02″	0.72″	1955	27%	0.04″
Jan 3	0.02″	0.62″	1966	21%	0.06″
Jan 4	0.02″	0.50″	1907	26%	0.08″
Jan 5	0.02″	0.37″	1989	21%	0.10″
Jan 6	0.02″	0.47″	2023	27%	0.12″
Jan 7	0.02″	0.60″	1962	23%	0.13″
Jan 8	0.02″	0.26″	1978	21%	0.15″
Jan 9	0.02″	0.37″	1963	24%	0.17″
Jan 10	0.02″	0.41″	1911	28%	0.18″
Jan 11	0.02″	0.53″	1988	24%	0.20″
Jan 12	0.02″	0.19″	1948	22%	0.21″
Jan 13	0.02″	0.28″	1958	24%	0.23″
Jan 14	0.02″	0.51″	1928	29%	0.25″
Jan 15	0.02″	0.53″	2006	24%	0.27″
Jan 16	0.02″	0.29″	1992	27%	0.29″
Jan 17	0.02″	0.47″	1954	32%	0.31″
Jan 18	0.02″	0.25″	1975	27%	0.33″
Jan 19	0.02″	0.28″	2008	23%	0.35″
Jan 20	0.02″	0.34″	1998	19%	0.37″
Jan 21	0.02″	0.68″	1943	24%	0.38″
Jan 22	0.02″	0.47″	1993	26%	0.40″
Jan 23	0.02″	0.37″	1943	25%	0.42″
Jan 24	0.02″	0.56″	1916	30%	0.44″
Jan 25	0.02″	0.56″	1916	24%	0.46″
Jan 26	0.02″	0.39″	1893	22%	0.48″
Jan 27	0.02″	0.49″	1949	21%	0.50″
Jan 28	0.02″	0.64″	1959	23%	0.51″
Jan 29	0.02″	0.42″	2014	24%	0.53″
Jan 30	0.02″	0.64″	1974	20%	0.55″
Jan 31	0.02″	0.21″	1911	26%	0.56″
Feb 1	0.02″	0.25″	1963	22%	0.58″
Feb 2	0.02″	0.34″	1923	21%	0.60″
Feb 3	0.02″	0.44″	2024	20%	0.62″
Feb 4	0.02″	0.43″	1944	26%	0.64″
Feb 5	0.02″	0.25″	2021	26%	0.66″
Feb 6	0.02″	0.24″	1916	31%	0.68″
Feb 7	0.02″	0.42″	1923	31%	0.69″
Feb 8	0.02″	0.34″	2018	25%	0.71″
Feb 9	0.02″	0.31″	1929	28%	0.74″
Feb 10	0.02″	0.23″	1922	24%	0.76″
Feb 11	0.02″	0.43″	1978	27%	0.78″
Feb 12	0.02″	0.93″	1897	24%	0.80″
Feb 13	0.02″	0.43″	1958	27%	0.82″
Feb 14	0.02″	0.38″	2000	26%	0.84″
Feb 15	0.02″	0.27″	2019	23%	0.86″
Feb 16	0.02″	0.47″	1959	27%	0.88″
Feb 17	0.02″	0.29″	1959	21%	0.90″
Feb 18	0.02″	0.27″	1949	25%	0.93″
Feb 19	0.02″	0.23″	1955	23%	0.95″
Feb 20	0.02″	0.38″	1920	24%	0.97″
Feb 21	0.02″	0.88″	1951	30%	1.00″
Feb 22	0.02″	0.36″	1972	30%	1.02″
Feb 23	0.02″	0.45″	2007	30%	1.04″
Feb 24	0.02″	0.32″	1917	23%	1.06″
Feb 25	0.02″	0.54″	1911	27%	1.08″
Feb 26	0.02″	0.44″	1958	26%	1.10″
Feb 27	0.02″	0.34″	1952	24%	1.12″
Feb 28	0.02″	0.64″	1953	29%	1.14″
Feb 29	0.02″	0.50″	1944	25%	1.16″
Mar 1	0.02″	0.45″	1932	30%	1.18″
Mar 2	0.02″	0.40″	2025	33%	1.20″
Mar 3	0.02″	0.33″	2018	33%	1.21″
Mar 4	0.02″	0.51″	1990	31%	1.23″
Mar 5	0.02″	0.71″	1932	30%	1.25″
Mar 6	0.02″	0.19″	1897	21%	1.26″
Mar 7	0.02″	0.38″	1908	26%	1.28″
Mar 8	0.02″	0.24″	1917	27%	1.30″
Mar 9	0.02″	0.58″	2014	22%	1.32″
Mar 10	0.02″	0.45″	1929	24%	1.34″
Mar 11	0.02″	0.55″	1925	29%	1.36″
Mar 12	0.02″	0.50″	1990	33%	1.38″
Mar 13	0.02″	1.09″	1896	26%	1.40″
Mar 14	0.02″	0.39″	2023	30%	1.42″
Mar 15	0.02″	0.51″	1981	24%	1.45″
Mar 16	0.02″	0.53″	1950	28%	1.47″
Mar 17	0.02″	0.44″	1968	20%	1.50″
Mar 18	0.02″	0.86″	1987	24%	1.52″
Mar 19	0.03″	0.44″	2012	19%	1.55″
Mar 20	0.03″	0.41″	1944	24%	1.57″
Mar 21	0.03″	0.62″	1929	26%	1.60″
Mar 22	0.03″	0.31″	1922	24%	1.62″
Mar 23	0.03″	0.60″	1920	29%	1.65″
Mar 24	0.03″	0.44″	1898	30%	1.67″
Mar 25	0.03″	0.45″	1940	30%	1.70″
Mar 26	0.03″	0.59″	1961	24%	1.73″
Mar 27	0.03″	0.40″	1934	30%	1.76″
Mar 28	0.03″	1.06″	1977	30%	1.80″
Mar 29	0.03″	0.66″	1930	27%	1.83″
Mar 30	0.04″	0.44″	1999	24%	1.86″
Mar 31	0.04″	0.47″	1997	30%	1.90″
Apr 1	0.04″	0.98″	2026	34%	1.94″
Apr 2	0.04″	0.61″	1910	33%	1.98″
Apr 3	0.04″	1.03″	1903	22%	2.03″
Apr 4	0.05″	0.87″	1967	30%	2.07″
Apr 5	0.05″	0.74″	2006	31%	2.13″
Apr 6	0.06″	0.69″	1975	27%	2.18″
Apr 7	0.06″	0.78″	1995	24%	2.24″
Apr 8	0.06″	1.08″	2017	27%	2.30″
Apr 9	0.06″	0.31″	1903	24%	2.35″
Apr 10	0.06″	1.13″	1996	24%	2.41″
Apr 11	0.06″	0.80″	1916	26%	2.47″
Apr 12	0.06″	0.84″	2010	25%	2.54″
Apr 13	0.06″	0.59″	1895	30%	2.60″
Apr 14	0.07″	0.65″	2016	24%	2.67″
Apr 15	0.07″	1.01″	1896	31%	2.73″
Apr 16	0.06″	0.56″	1971	27%	2.80″
Apr 17	0.07″	1.22″	1993	26%	2.86″
Apr 18	0.06″	0.82″	1967	29%	2.92″
Apr 19	0.06″	1.69″	1973	27%	2.98″
Apr 20	0.06″	0.63″	2011	27%	3.04″
Apr 21	0.06″	0.70″	2014	32%	3.10″
Apr 22	0.06″	0.81″	1925	34%	3.15″
Apr 23	0.06″	1.24″	1892	32%	3.21″
Apr 24	0.05″	0.90″	1986	30%	3.26″
Apr 25	0.05″	1.38″	1975	41%	3.32″
Apr 26	0.05″	0.78″	1976	36%	3.37″
Apr 27	0.05″	0.73″	1970	36%	3.41″
Apr 28	0.05″	1.02″	2010	36%	3.46″
Apr 29	0.05″	2.20″	1951	33%	3.51″
Apr 30	0.05″	0.70″	1951	28%	3.56″
May 1	0.05″	0.57″	1920	24%	3.60″
May 2	0.05″	0.75″	1901	27%	3.65″
May 3	0.05″	1.11″	1964	30%	3.71″
May 4	0.06″	0.74″	2023	32%	3.76″
May 5	0.05″	0.95″	1975	31%	3.81″
May 6	0.05″	0.83″	1995	36%	3.86″
May 7	0.05″	1.02″	1948	30%	3.91″
May 8	0.05″	0.97″	1948	40%	3.96″
May 9	0.06″	0.97″	1914	32%	4.02″
May 10	0.06″	1.40″	2018	26%	4.08″
May 11	0.06″	1.40″	1900	30%	4.14″
May 12	0.06″	1.16″	1908	31%	4.20″
May 13	0.07″	0.43″	1942	29%	4.26″
May 14	0.07″	2.75″	1902	33%	4.33″
May 15	0.07″	1.71″	1894	33%	4.40″
May 16	0.08″	1.55″	1949	41%	4.48″
May 17	0.08″	1.63″	1959	35%	4.56″
May 18	0.08″	0.61″	1970	46%	4.64″
May 19	0.09″	1.76″	1957	47%	4.73″
May 20	0.09″	1.43″	1962	39%	4.82″
May 21	0.10″	0.58″	2016	41%	4.92″
May 22	0.11″	1.27″	1968	40%	5.02″
May 23	0.11″	1.75″	1953	36%	5.13″
May 24	0.11″	2.05″	1953	40%	5.24″
May 25	0.12″	2.50″	1980	35%	5.36″
May 26	0.12″	1.58″	2006	39%	5.48″
May 27	0.12″	1.43″	1990	41%	5.59″
May 28	0.12″	2.40″	1953	36%	5.71″
May 29	0.12″	1.88″	1998	41%	5.82″
May 30	0.12″	1.20″	2026	44%	5.94″
May 31	0.11″	1.97″	1954	34%	6.05″
Jun 1	0.11″	2.42″	2005	47%	6.17″
Jun 2	0.12″	2.07″	1953	40%	6.29″
Jun 3	0.12″	1.26″	1925	37%	6.41″
Jun 4	0.12″	1.54″	1948	38%	6.53″
Jun 5	0.12″	2.70″	1908	43%	6.65″
Jun 6	0.11″	1.47″	1976	47%	6.76″
Jun 7	0.11″	1.84″	1910	42%	6.87″
Jun 8	0.11″	2.28″	1964	42%	6.98″
Jun 9	0.11″	2.24″	2002	39%	7.09″
Jun 10	0.11″	1.92″	1892	41%	7.20″
Jun 11	0.11″	2.37″	1892	41%	7.31″
Jun 12	0.11″	2.16″	1914	40%	7.42″
Jun 13	0.11″	0.88″	1992	37%	7.53″
Jun 14	0.10″	0.59″	1926	33%	7.64″
Jun 15	0.10″	1.35″	1965	44%	7.74″
Jun 16	0.09″	1.32″	1897	45%	7.83″
Jun 17	0.08″	0.87″	1978	41%	7.91″
Jun 18	0.08″	1.20″	2024	41%	7.99″
Jun 19	0.07″	2.02″	1903	39%	8.06″
Jun 20	0.07″	1.61″	1907	37%	8.13″
Jun 21	0.07″	1.20″	1916	32%	8.20″
Jun 22	0.07″	3.36″	1907	38%	8.27″
Jun 23	0.06″	0.71″	2023	38%	8.34″
Jun 24	0.06″	2.16″	1969	35%	8.40″
Jun 25	0.06″	0.88″	1998	29%	8.45″
Jun 26	0.06″	0.68″	1911	33%	8.51″
Jun 27	0.05″	1.62″	2026	40%	8.56″
Jun 28	0.06″	1.25″	2026	38%	8.62″
Jun 29	0.06″	2.05″	2020	31%	8.67″
Jun 30	0.06″	0.92″	1892	28%	8.73″
Jul 1	0.05″	1.28″	1903	33%	8.78″
Jul 2	0.06″	1.30″	1902	33%	8.84″
Jul 3	0.05″	0.75″	1916	27%	8.89″
Jul 4	0.05″	0.93″	1978	35%	8.94″
Jul 5	0.06″	0.92″	1988	32%	9.00″
Jul 6	0.06″	0.97″	1934	33%	9.05″
Jul 7	0.05″	0.98″	1922	27%	9.10″
Jul 8	0.05″	0.84″	1983	21%	9.16″
Jul 9	0.05″	1.61″	1983	35%	9.21″
Jul 10	0.05″	0.87″	1955	13%	9.25″
Jul 11	0.04″	1.00″	1976	25%	9.30″
Jul 12	0.04″	1.14″	1989	29%	9.34″
Jul 13	0.04″	1.34″	1927	34%	9.38″
Jul 14	0.04″	1.15″	2025	24%	9.42″
Jul 15	0.04″	0.58″	1950	26%	9.46″
Jul 16	0.04″	1.32″	1915	22%	9.50″
Jul 17	0.04″	0.49″	1987	19%	9.53″
Jul 18	0.04″	0.94″	1972	19%	9.57″
Jul 19	0.03″	1.18″	1997	16%	9.61″
Jul 20	0.03″	0.83″	1948	19%	9.64″
Jul 21	0.03″	0.99″	1955	18%	9.67″
Jul 22	0.03″	0.54″	1918	17%	9.70″
Jul 23	0.03″	0.95″	2009	19%	9.72″
Jul 24	0.03″	0.54″	1955	23%	9.75″
Jul 25	0.03″	1.03″	1909	24%	9.78″
Jul 26	0.03″	0.80″	1916	15%	9.81″
Jul 27	0.03″	0.51″	1909	21%	9.84″
Jul 28	0.03″	0.24″	1905	18%	9.86″
Jul 29	0.03″	1.27″	1950	19%	9.89″
Jul 30	0.03″	1.05″	2001	19%	9.92″
Jul 31	0.03″	0.60″	1915	21%	9.95″
Aug 1	0.03″	0.71″	1970	22%	9.98″
Aug 2	0.03″	0.28″	1992	24%	10.01″
Aug 3	0.03″	0.73″	1911	25%	10.04″
Aug 4	0.03″	0.42″	1912	25%	10.07″
Aug 5	0.03″	0.52″	1987	24%	10.11″
Aug 6	0.04″	0.67″	2002	22%	10.14″
Aug 7	0.03″	1.02″	1974	24%	10.18″
Aug 8	0.03″	1.72″	1950	23%	10.21″
Aug 9	0.03″	1.45″	1907	19%	10.24″
Aug 10	0.03″	0.90″	1999	21%	10.28″
Aug 11	0.03″	0.56″	1974	28%	10.31″
Aug 12	0.03″	0.46″	1977	19%	10.34″
Aug 13	0.04″	1.07″	1908	22%	10.38″
Aug 14	0.04″	1.58″	1927	22%	10.42″
Aug 15	0.04″	1.06″	1968	19%	10.46″
Aug 16	0.05″	0.91″	2021	13%	10.51″
Aug 17	0.05″	1.58″	1990	19%	10.56″
Aug 18	0.04″	0.60″	1912	27%	10.61″
Aug 19	0.04″	1.58″	1974	27%	10.65″
Aug 20	0.04″	2.72″	1933	23%	10.69″
Aug 21	0.04″	1.75″	1932	26%	10.74″
Aug 22	0.04″	2.87″	2014	22%	10.78″
Aug 23	0.04″	1.37″	2004	22%	10.83″
Aug 24	0.04″	1.89″	1989	20%	10.87″
Aug 25	0.05″	0.40″	1927	22%	10.92″
Aug 26	0.05″	0.55″	1892	25%	10.96″
Aug 27	0.05″	0.60″	1951	19%	11.01″
Aug 28	0.05″	0.90″	1993	23%	11.06″
Aug 29	0.05″	0.61″	1926	24%	11.11″
Aug 30	0.04″	0.69″	1906	22%	11.15″
Aug 31	0.04″	1.02″	1910	22%	11.19″
Sep 1	0.04″	1.14″	1898	17%	11.24″
Sep 2	0.04″	0.97″	1909	21%	11.28″
Sep 3	0.04″	0.72″	1910	21%	11.32″
Sep 4	0.04″	0.81″	2010	26%	11.36″
Sep 5	0.04″	0.90″	1926	27%	11.40″
Sep 6	0.05″	0.94″	1924	24%	11.45″
Sep 7	0.05″	0.59″	1893	34%	11.50″
Sep 8	0.05″	0.81″	1896	27%	11.55″
Sep 9	0.05″	0.45″	1916	25%	11.61″
Sep 10	0.05″	1.29″	1978	33%	11.66″
Sep 11	0.05″	0.66″	1978	22%	11.71″
Sep 12	0.05″	0.53″	2004	33%	11.76″
Sep 13	0.05″	0.95″	1917	19%	11.81″
Sep 14	0.05″	1.10″	2017	28%	11.86″
Sep 15	0.05″	0.74″	1959	26%	11.91″
Sep 16	0.05″	0.63″	1947	22%	11.95″
Sep 17	0.05″	1.09″	1988	22%	12.00″
Sep 18	0.05″	1.51″	1925	25%	12.05″
Sep 19	0.05″	0.79″	1968	22%	12.09″
Sep 20	0.05″	1.39″	1945	25%	12.14″
Sep 21	0.04″	0.84″	1910	24%	12.18″
Sep 22	0.04″	0.90″	2007	19%	12.22″
Sep 23	0.03″	1.18″	1918	20%	12.25″
Sep 24	0.03″	0.79″	1908	19%	12.29″
Sep 25	0.04″	0.65″	1929	25%	12.33″
Sep 26	0.04″	1.56″	1982	22%	12.37″
Sep 27	0.04″	0.99″	1954	17%	12.41″
Sep 28	0.04″	0.60″	2019	18%	12.45″
Sep 29	0.04″	1.34″	2022	18%	12.49″
Sep 30	0.04″	0.46″	2023	23%	12.53″
Oct 1	0.04″	0.90″	1914	27%	12.58″
Oct 2	0.04″	2.28″	2015	28%	12.62″
Oct 3	0.04″	0.85″	2016	24%	12.66″
Oct 4	0.04″	0.84″	1992	23%	12.70″
Oct 5	0.04″	0.52″	1931	22%	12.75″
Oct 6	0.04″	0.81″	2011	21%	12.79″
Oct 7	0.04″	0.43″	1904	19%	12.83″
Oct 8	0.05″	0.81″	1938	19%	12.88″
Oct 9	0.04″	0.65″	1998	20%	12.92″
Oct 10	0.04″	0.89″	1975	20%	12.96″
Oct 11	0.04″	0.57″	1966	21%	13.00″
Oct 12	0.03″	1.11″	1975	16%	13.03″
Oct 13	0.04″	0.78″	1920	16%	13.07″
Oct 14	0.03″	0.33″	1938	17%	13.10″
Oct 15	0.03″	0.65″	1980	15%	13.12″
Oct 16	0.03″	0.31″	1957	20%	13.16″
Oct 17	0.03″	1.03″	1910	18%	13.19″
Oct 18	0.03″	0.69″	2020	14%	13.21″
Oct 19	0.03″	0.19″	1909	18%	13.24″
Oct 20	0.03″	0.53″	1908	23%	13.27″
Oct 21	0.03″	0.84″	1919	22%	13.30″
Oct 22	0.03″	0.89″	1954	19%	13.33″
Oct 23	0.03″	0.61″	1913	16%	13.36″
Oct 24	0.03″	0.44″	2023	19%	13.38″
Oct 25	0.03″	0.41″	1991	13%	13.41″
Oct 26	0.03″	0.40″	1984	19%	13.43″
Oct 27	0.03″	0.42″	2013	18%	13.46″
Oct 28	0.03″	0.58″	1972	16%	13.49″
Oct 29	0.03″	0.59″	1919	10%	13.51″
Oct 30	0.03″	0.65″	1992	19%	13.54″
Oct 31	0.03″	0.68″	2017	16%	13.56″
Nov 1	0.03″	0.21″	1944	19%	13.59″
Nov 2	0.03″	0.42″	2015	17%	13.62″
Nov 3	0.03″	0.33″	1927	21%	13.65″
Nov 4	0.03″	1.00″	1918	26%	13.68″
Nov 5	0.03″	0.30″	1966	20%	13.70″
Nov 6	0.03″	0.29″	1898	19%	13.73″
Nov 7	0.02″	1.14″	1906	26%	13.75″
Nov 8	0.02″	0.76″	2012	21%	13.77″
Nov 9	0.02″	0.63″	1968	29%	13.79″
Nov 10	0.02″	0.60″	1959	26%	13.81″
Nov 11	0.02″	0.61″	1910	21%	13.84″
Nov 12	0.02″	0.21″	1909	14%	13.86″
Nov 13	0.02″	0.44″	1955	19%	13.88″
Nov 14	0.02″	0.49″	1965	19%	13.90″
Nov 15	0.02″	0.52″	1952	20%	13.92″
Nov 16	0.01″	0.56″	1941	19%	13.93″
Nov 17	0.01″	0.35″	1900	22%	13.95″
Nov 18	0.02″	0.50″	2007	20%	13.96″
Nov 19	0.02″	0.96″	1946	29%	13.98″
Nov 20	0.02″	0.72″	1921	29%	14.00″
Nov 21	0.02″	0.60″	1940	17%	14.03″
Nov 22	0.02″	0.30″	1931	19%	14.05″
Nov 23	0.02″	1.14″	1892	19%	14.07″
Nov 24	0.02″	0.64″	1961	24%	14.10″
Nov 25	0.02″	0.63″	1955	29%	14.12″
Nov 26	0.02″	0.89″	2005	19%	14.14″
Nov 27	0.02″	0.46″	1933	22%	14.16″
Nov 28	0.02″	0.58″	1919	22%	14.18″
Nov 29	0.02″	0.24″	1919	12%	14.20″
Nov 30	0.02″	0.45″	1921	23%	14.22″
Dec 1	0.02″	0.45″	1921	22%	14.24″
Dec 2	0.02″	0.49″	1972	21%	14.26″
Dec 3	0.02″	0.46″	1978	22%	14.27″
Dec 4	0.01″	0.32″	1968	19%	14.29″
Dec 5	0.01″	0.46″	1971	23%	14.30″
Dec 6	0.01″	0.35″	1988	21%	14.32″
Dec 7	0.01″	0.48″	1907	16%	14.33″
Dec 8	0.01″	0.31″	1963	19%	14.34″
Dec 9	0.01″	0.38″	1892	21%	14.35″
Dec 10	0.01″	0.36″	1903	21%	14.37″
Dec 11	0.01″	0.55″	1937	23%	14.38″
Dec 12	0.01″	0.51″	1906	25%	14.39″
Dec 13	0.01″	0.77″	2015	22%	14.41″
Dec 14	0.01″	0.55″	1921	17%	14.42″
Dec 15	0.01″	0.61″	1929	26%	14.44″
Dec 16	0.01″	0.63″	1973	21%	14.45″
Dec 17	0.01″	0.30″	1990	22%	14.47″
Dec 18	0.02″	0.34″	1925	22%	14.48″
Dec 19	0.02″	0.32″	1968	24%	14.50″
Dec 20	0.02″	0.57″	1945	21%	14.52″
Dec 21	0.02″	0.36″	1974	22%	14.54″
Dec 22	0.02″	0.36″	1982	25%	14.56″
Dec 23	0.02″	0.60″	1941	22%	14.58″
Dec 24	0.02″	0.28″	2016	17%	14.60″
Dec 25	0.02″	0.29″	1988	24%	14.62″
Dec 26	0.02″	0.27″	2006	24%	14.64″
Dec 27	0.02″	0.40″	1989	27%	14.66″
Dec 28	0.02″	0.74″	2010	31%	14.68″
Dec 29	0.02″	0.70″	1917	27%	14.70″
Dec 30	0.02″	0.41″	1899	21%	14.72″
Dec 31	0.02″	0.13″	1976	30%	14.75″

Records & forecast → Great Falls station Every Day of the Year → national almanac

Data: NOAA/NWS ThreadEx (RCC-ACIS) · normals 1991–2020 (or full record) · part of Weather Trader