The Year in Rain & Snow
1978
105%
ran at 105% of normal — wetter than usual — across 375 cities, the 24th wettest of 157 years on record.
Biggest Rain Day of 1978
8.65in
Gulfport, MS · May 3
Snowiest Station of 1978
154.6in
Syracuse, NY · calendar-year snowfall
Daily Rainfall Records Set
1,220
calendar-day rainfall records set in 1978 that still stand today
National Precipitation
105%
of the 1996–2025 average across 375 cities
Where the Year Ran Wet & Dry
Each city's 1978 precipitation as a percent of its 1996–2025 normal — brown where the year ran dry, green-to-blue where it ran wet.
Precipitation by month as a percent of normal — blue above the line is a wet month, amber below is dry.
Wettest Stations & States
Wettest states of 1978
Arizona187%California183%Nevada128%New Mexico126%Montana124%Hawaii124%
Driest states of 1978
New Hampshire67%Maine76%Puerto Rico79%Vermont81%Georgia84%Massachusetts84%