Weston, ID climate
Weston has chilly, snowy winters and warm summers, with very little rain. A typical July afternoon reaches 89°, a January night drops to 16°, and about 52 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Weston feels like
Winter
Spring
Summer
Fall
Weston 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 | 30-yr range |
|---|---|---|---|---|---|---|
| January | 32° | 16° | 1.7" | 13.5" | 10 | 12° – 33° |
| February | 37° | 19° | 1.4" | 10.8" | 10 | 18° – 38° |
| March | 49° | 28° | 1.5" | 5.1" | 9 | 32° – 44° |
| April | 58° | 34° | 1.7" | 3.0" | 10 | 42° – 52° |
| May | 68° | 41° | 2.1" | 0.2" | 10 | 49° – 59° |
| June | 78° | 48° | 1.2" | 0 | 6 | 57° – 70° |
| July | 89° | 55° | 0.6" | 0 | 5 | 61° – 77° |
| August | 87° | 53° | 0.8" | 0 | 5 | 65° – 73° |
| September | 77° | 44° | 1.2" | 0 | 6 | 57° – 64° |
| October | 62° | 34° | 1.4" | 0.8" | 7 | 39° – 54° |
| November | 46° | 25° | 1.1" | 4.9" | 8 | 27° – 41° |
| December | 33° | 17° | 1.6" | 14.1" | 10 | 18° – 31° |
| Year | 60° | 34° | 16.3" | 52.4" | 94 |
“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 Weston
Weston gets 16 inches of rain and melted snow a year. May is the wettest month and July the driest. Rain or snow falls on about 94 days a year.
About 133 frost-free days a year
In half of years the last 32° night comes by May 16 and the first one by September 28. That leaves about 133 frost-free days for gardens, shorter than 93% of U.S. towns.
Heating and cooling a home in Weston
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Weston, 94% of that work is heating and 6% 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 Weston 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 Weston averaged 1.5° warmer than the 1900s. The biggest change is in March (+3.3°). The shift is larger than in 72% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Weston’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. January swings the most: between 1991 and 2020 its average temperature ranged from 12° to 33°. September is the most reliable, staying within 7°.
Common questions about Weston’s climate
What is the coldest month in Weston?
January, with a typical high of 32° and a low of 16°.
What is the hottest month in Weston?
July, with a typical high of 89° and a low of 55°. About 34 days a year reach 90°.
How much snow does Weston get?
About 52 inches in a normal winter, most of it in December.
When is the first frost in Weston?
In half of years the first 32° night comes by September 28, and the last spring frost by May 16.
What is the rainiest month in Weston?
May, with 2.1 inches of rain and melted snow. The year totals 16 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Weston itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Preston, ID (6 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.