Mormon Lake, AZ climate
Mormon Lake has chilly, snowy winters and pleasant summers, with very little rain. A typical July afternoon reaches 80°, a January night drops to 20°, and about 77 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Mormon Lake feels like
Winter
Spring
Summer
Fall
Mormon Lake 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 | 43° | 20° | 2.2" | 21.9" | 7 | 25° – 37° |
| February | 45° | 21° | 2.4" | 17.7" | 8 | 28° – 40° |
| March | 51° | 26° | 2.0" | 15.1" | 7 | 31° – 44° |
| April | 58° | 30° | 0.9" | 6.4" | 4 | 37° – 48° |
| May | 67° | 37° | 0.8" | 0.3" | 3 | 46° – 56° |
| June | 77° | 45° | 0.4" | 0 | 2 | 56° – 65° |
| July | 80° | 52° | 2.6" | 0 | 9 | 63° – 69° |
| August | 78° | 51° | 3.3" | 0 | 14 | 62° – 69° |
| September | 72° | 45° | 1.9" | 0 | 8 | 55° – 61° |
| October | 62° | 35° | 1.4" | 0.9" | 5 | 45° – 53° |
| November | 51° | 26° | 1.5" | 3.9" | 5 | 31° – 46° |
| December | 42° | 20° | 2.0" | 11.2" | 7 | 26° – 37° |
| Year | 61° | 34° | 21.4" | 77.4" | 78 |
“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 Mormon Lake
Mormon Lake gets 21 inches of rain and melted snow a year. August is the wettest month and June the driest. Rain or snow falls on about 78 days a year.
About 124 frost-free days a year
In half of years the last 32° night comes by June 1 and the first one by October 3. That leaves about 124 frost-free days for gardens, shorter than 96% of U.S. towns.
Heating and cooling a home in Mormon Lake
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Mormon Lake, 99% of that work is heating and 1% 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 Mormon Lake 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 Mormon Lake averaged 1.9° warmer than the 1900s. The biggest change is in March (+3.2°). The shift is larger than in 91% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Mormon Lake’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 31° to 46°. September is the most reliable, staying within 6°.
Common questions about Mormon Lake’s climate
What is the coldest month in Mormon Lake?
January, with a typical high of 43° and a low of 20°.
What is the hottest month in Mormon Lake?
July, with a typical high of 80° and a low of 52°. About 1 days a year reach 90°.
How much snow does Mormon Lake get?
About 77 inches in a normal winter, most of it in January.
When is the first frost in Mormon Lake?
In half of years the first 32° night comes by October 3, and the last spring frost by June 1.
What is the rainiest month in Mormon Lake?
August, with 3.3 inches of rain and melted snow. The year totals 21 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Mormon Lake itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Mund's Park, AZ (11 mi, snow) and Happy Jack Rs, AZ (12 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.