Interlaken, UT climate
Interlaken has cold, snowy winters and warm summers, with very little rain. A typical July afternoon reaches 88°, a January night drops to 13°, and about 75 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Interlaken feels like
Winter
Spring
Summer
Fall
Interlaken 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 | 36° | 13° | 1.7" | 21.5" | 9 | 24 | 19° – 31° |
| February | 41° | 16° | 1.4" | 13.9" | 8 | 21 | 24° – 35° |
| March | 51° | 25° | 1.3" | 6.7" | 8 | 7 | 32° – 43° |
| April | 58° | 30° | 1.5" | 4.0" | 9 | 0 | 40° – 50° |
| May | 69° | 37° | 1.6" | 0.8" | 8 | 0 | 47° – 57° |
| June | 80° | 43° | 0.9" | 0 | 6 | 0 | 56° – 67° |
| July | 88° | 50° | 0.7" | 0 | 5 | 0 | 62° – 73° |
| August | 86° | 49° | 0.9" | 0 | 6 | 0 | 64° – 71° |
| September | 77° | 41° | 1.2" | 0 | 6 | 0 | 55° – 63° |
| October | 63° | 31° | 1.5" | 1.7" | 7 | 0 | 40° – 52° |
| November | 48° | 22° | 1.3" | 8.6" | 7 | 5 | 27° – 42° |
| December | 37° | 14° | 1.5" | 17.8" | 8 | 18 | 20° – 29° |
| Year | 61° | 31° | 15.5" | 75.0" | 88 | 75 |
“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 Interlaken
Interlaken gets 15 inches of rain and melted snow a year. January is the wettest month and July the driest. Rain or snow falls on about 88 days a year. Snow covers the ground about 75 days of the year.
About 101 frost-free days a year
In half of years the last 32° night comes by May 31 and the first one by September 11. That leaves about 101 frost-free days for gardens, shorter than 99% of U.S. towns.
Heating and cooling a home in Interlaken
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Interlaken, 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 Interlaken 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 Interlaken averaged 1.6° warmer than the 1900s. The biggest change is in March (+3.3°). The shift is larger than in 76% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Interlaken’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 27° to 42°. September is the most reliable, staying within 8°.
Common questions about Interlaken’s climate
What is the coldest month in Interlaken?
January, with a typical high of 36° and a low of 13°.
What is the hottest month in Interlaken?
July, with a typical high of 88° and a low of 50°. About 28 days a year reach 90°.
How much snow does Interlaken get?
About 75 inches in a normal winter, most of it in January.
When is the first frost in Interlaken?
In half of years the first 32° night comes by September 11, and the last spring frost by May 31.
What is the rainiest month in Interlaken?
January, with 1.7 inches of rain and melted snow. The year totals 15 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Interlaken itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Heber, UT (4 mi, snow) and Snake Creek Powerhouse, UT (2 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.