Culdesac, ID climate
Culdesac has chilly winters and warm summers, with very little rain. A typical July afternoon reaches 89°, a January night drops to 27°, and about 18 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Culdesac feels like
Winter
Spring
Summer
Fall
Culdesac 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 | 40° | 27° | 1.4" | 6.3" | 17 | 6 | 24° – 39° |
| February | 45° | 28° | 1.3" | 1.7" | 14 | 2 | 28° – 44° |
| March | 54° | 32° | 1.9" | 0.7" | 15 | 0 | 37° – 49° |
| April | 61° | 37° | 2.1" | 0 | 14 | 0 | 44° – 55° |
| May | 71° | 43° | 2.3" | 0 | 12 | 0 | 52° – 62° |
| June | 77° | 49° | 2.0" | 0 | 11 | 0 | 59° – 70° |
| July | 89° | 54° | 0.6" | 0 | 4 | 0 | 62° – 76° |
| August | 89° | 53° | 0.6" | 0 | 4 | 0 | 66° – 73° |
| September | 79° | 45° | 0.8" | 0 | 6 | 0 | 59° – 67° |
| October | 63° | 37° | 1.6" | 0 | 12 | 0 | 44° – 56° |
| November | 47° | 31° | 1.8" | 0.7" | 16 | 1 | 32° – 45° |
| December | 39° | 26° | 1.5" | 8.1" | 16 | 5 | 26° – 37° |
| Year | 63° | 38° | 17.9" | 17.5" | 140 | 13 |
“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 Culdesac
Culdesac gets 18 inches of rain and melted snow a year. May is the wettest month and August the driest. Rain or snow falls on about 140 days a year. Snow covers the ground about 13 days of the year.
About 182 frost-free days a year
In half of years the last 32° night comes by April 20 and the first one by October 20. That leaves about 182 frost-free days for gardens, longer than 55% of U.S. towns.
Heating and cooling a home in Culdesac
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Culdesac, 90% of that work is heating and 10% 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 Culdesac 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 Culdesac averaged 1.1° warmer than the 1900s. The biggest change is in January (+3.4°). The shift is smaller than in 60% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Culdesac’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. February swings the most: between 1991 and 2020 its average temperature ranged from 28° to 44°. August is the most reliable, staying within 7°.
Common questions about Culdesac’s climate
What is the coldest month in Culdesac?
December, with a typical high of 39° and a low of 26°.
What is the hottest month in Culdesac?
August, with a typical high of 89° and a low of 53°. About 47 days a year reach 90°.
How much snow does Culdesac get?
About 18 inches in a normal winter, most of it in December.
When is the first frost in Culdesac?
In half of years the first 32° night comes by October 20, and the last spring frost by April 20.
What is the rainiest month in Culdesac?
May, with 2.3 inches of rain and melted snow. The year totals 18 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Culdesac itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Dworshak Fish Hatchery, ID (19 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.