Climate · Ucon

Ucon, ID climate

Ucon has cold, snowy winters and warm summers, with very little rain. A typical July afternoon reaches 86°, a January night drops to 13°, and about 66 inches of snow falls in a normal winter.

NOAA 1991-2020 climate normals Updated once a decade
July high
86°
109th coolest of 234 Idaho towns
January low
13°
48th coldest of 234 Idaho towns
Rain + melted snow
12 in
77th driest of 234 Idaho towns
Snow a winter
66 in
47th snowiest of 208 Idaho towns
A normal year

What a year in Ucon feels like

Winter

31° / 14°
Typical high / low · 30 days with an inch or more of snow

Spring

57° / 32°
Typical high / low · Last frost around May 23

Summer

82° / 49°
Typical high / low · 26 days reach 90° in a normal year

Fall

58° / 32°
Typical high / low · First frost around Sep 20
Best months to be outsideJunSepHighs of 62–84° and lows of 40° or more
Month by month

Ucon weather by month

Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.

MonthHighLowRain + meltSnowWet daysSnow on ground30-yr range
January29°13°1.0" 17.0"1030 13° – 29°
February35°16°0.7" 11.8"925 15° – 36°
March47°25°0.9" 7.6"918 27° – 42°
April57°31°1.2" 2.9"102 38° – 49°
May67°39°1.7" 0.9"100 47° – 58°
June76°46°1.3" 0.2"80 55° – 67°
July86°51°0.6" 050 59° – 74°
August84°49°0.7" 060 61° – 70°
September74°41°1.0" 050 54° – 62°
October59°31°1.0" 1.7"71 37° – 52°
November42°22°0.8" 7.6"810 23° – 39°
December30°14°1.0" 16.0"1125 15° – 29°
Year57°32°11.8"65.7"97111

“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 & snow

Rain and snow in Ucon

Ucon gets 12 inches of rain and melted snow a year. May is the wettest month and July the driest. Rain or snow falls on about 97 days a year. Snow covers the ground about 111 days of the year.

12 in
Rain + melted snow a year
Less rain than 97% of U.S. towns
66 in
Snow in a normal winter
More snow than 91% of U.S. towns
111 days
With 1"+ of snow on the ground
More than 94% of U.S. towns

Rain + melted snow by month

Inches of water
1.7"

Snowfall by month

Inches of snow
17"
Frost & the growing season

About 114 frost-free days a year

In half of years the last 32° night comes by May 23 and the first one by September 20. That leaves about 114 frost-free days for gardens, shorter than 98% of U.S. towns.

182
nights at or below 32° in a normal year
15
nights below 0° in a normal year
26
days that reach 90° in a normal year

Freezing nights by month

Average nights at or below 32°

90° days by month

Average days at 90° or more
Heating & cooling

Heating and cooling a home in Ucon

Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Ucon, 97% of that work is heating and 3% is cooling, so the furnace matters far more than the air conditioner.

97%heating
7,792 heating degree daysMore heating than 83% of U.S. towns
249 cooling degree daysLess cooling than 94% of U.S. towns

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.

Compared with other towns

How Ucon compares

Summer heat86° July high
Hotter than 57% of U.S. towns109th coolest of 234 Idaho towns
Winter cold13° January low
Colder than 77% of U.S. towns48th coldest of 234 Idaho towns
Precipitation12" a year
Drier than 97% of U.S. towns77th driest of 234 Idaho towns
Snow66" a winter
Snowier than 91% of U.S. towns47th snowiest of 208 Idaho towns
Growing season114 frost-free days
Shorter than 98% of U.S. towns54th shortest of 232 Idaho towns

Compared with every U.S. town and city on TownTapestry, each counted once.

Then and now

Warmer than it used to be

+1.5°1991–2020 average vs. the 20th century (1901–2000)

The last 30 years in Ucon averaged 1.5° warmer than the 1900s. The biggest change is in March (+3.9°). The shift is larger than in 72% of U.S. towns.

❄️ Winter+2.0° now 23°, was 21°
🌷 Spring+1.9° now 44°, was 42°
☀️ Summer+1.2° now 65°, was 64°
🍂 Fall+1.0° now 45°, was 44°

Change by month1991–2020 average minus 1901–2000 average, at Ucon’s spot on NOAA’s grid

Year to year

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 15° to 36°. September is the most reliable, staying within 8°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Ucon’s climate

What is the coldest month in Ucon?

January, with a typical high of 29° and a low of 13°.

What is the hottest month in Ucon?

July, with a typical high of 86° and a low of 51°. About 26 days a year reach 90°.

How much snow does Ucon get?

About 66 inches in a normal winter, most of it in January.

When is the first frost in Ucon?

In half of years the first 32° night comes by September 20, and the last spring frost by May 23.

What is the rainiest month in Ucon?

May, with 1.7 inches of rain and melted snow. The year totals 12 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Ucon itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Idaho Falls 16 Se, ID (19 mi, snow) and Idaho Falls Fanning Fld, ID (8 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.

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