Warm River, ID climate
Warm River has cold, snowy winters and pleasant summers, with very little rain. A typical July afternoon reaches 82°, a January night drops to 11°, and about 70 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Warm River feels like
Winter
Spring
Summer
Fall
Warm River weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 28° | 11° | 2.2" | 19.8" | 9 | 31 | 13° – 27° |
| February | 33° | 13° | 1.6" | 10.7" | 7 | 29 | 17° – 30° |
| March | 43° | 21° | 1.5" | 5.3" | 7 | 25 | 23° – 38° |
| April | 53° | 28° | 1.8" | 2.0" | 7 | 4 | 32° – 46° |
| May | 64° | 36° | 2.2" | 0 | 8 | 0 | 45° – 55° |
| June | 72° | 43° | 1.8" | 0 | 6 | 0 | 51° – 64° |
| July | 82° | 48° | 0.9" | 0 | 3 | 0 | 55° – 72° |
| August | 82° | 46° | 0.9" | 0 | 4 | 0 | 58° – 67° |
| September | 71° | 38° | 1.3" | 0 | 5 | 0 | 51° – 59° |
| October | 56° | 29° | 1.6" | 1.6" | 5 | 1 | 33° – 49° |
| November | 40° | 19° | 1.7" | 10.5" | 7 | 10 | 20° – 38° |
| December | 28° | 12° | 2.3" | 20.2" | 10 | 26 | 15° – 26° |
| Year | 54° | 29° | 19.7" | 70.1" | 78 | 125 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in Warm River
Warm River gets 20 inches of rain and melted snow a year. December is the wettest month and July the driest. Rain or snow falls on about 78 days a year. Snow covers the ground about 125 days of the year.
About 121 frost-free days a year
In half of years the last 32° night comes by May 21 and the first one by September 21. That leaves about 121 frost-free days for gardens, shorter than 97% of U.S. towns.
Heating and cooling a home in Warm River
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Warm River, 97% of that work is heating and 3% is cooling, so the furnace matters far more than the air conditioner.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
How Warm River compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in Warm River averaged 1.4° warmer than the 1900s. The biggest change is in March (+3.7°). The shift is larger than in 63% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Warm River’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. November swings the most: between 1991 and 2020 its average temperature ranged from 20° to 38°. September is the most reliable, staying within 8°.
Common questions about Warm River’s climate
What is the coldest month in Warm River?
January, with a typical high of 28° and a low of 11°.
What is the hottest month in Warm River?
July, with a typical high of 82° and a low of 48°. About 9 days a year reach 90°.
How much snow does Warm River get?
About 70 inches in a normal winter, most of it in December.
When is the first frost in Warm River?
In half of years the first 32° night comes by September 21, and the last spring frost by May 21.
What is the rainiest month in Warm River?
December, with 2.3 inches of rain and melted snow. The year totals 20 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Warm River itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Ashton 1n, ID (8 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.