Big Water, UT climate
Big Water has chilly winters and hot summers, with very little rain. A typical July afternoon reaches 99°, a January night drops to 26°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Big Water feels like
Winter
Spring
Summer
Fall
Big Water 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 | 46° | 26° | 0.6" | 0 | 4 | 0 | 30° – 41° |
| February | 53° | 30° | 0.6" | 0.3" | 5 | 0 | 36° – 47° |
| March | 63° | 37° | 0.7" | 0 | 4 | 0 | 45° – 56° |
| April | 71° | 43° | 0.3" | 0 | 3 | 0 | 52° – 63° |
| May | 82° | 51° | 0.4" | 0 | 2 | 0 | 60° – 71° |
| June | 94° | 61° | 0.1" | 0 | 1 | 0 | 71° – 82° |
| July | 99° | 68° | 0.5" | 0 | 2 | 0 | 80° – 87° |
| August | 95° | 67° | 1.0" | 0 | 4 | 0 | 77° – 86° |
| September | 87° | 58° | 0.7" | 0 | 3 | 0 | 68° – 76° |
| October | 73° | 46° | 1.0" | 0 | 4 | 0 | 55° – 64° |
| November | 57° | 33° | 0.5" | 0 | 2 | 0 | 39° – 51° |
| December | 45° | 25° | 0.5" | 0.3" | 3 | 0 | 29° – 41° |
| Year | 72° | 45° | 6.9" | 0.6" | 36 | 0 |
“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 Big Water
Big Water gets 7 inches of rain and melted snow a year. August is the wettest month and June the driest. Rain or snow falls on about 36 days a year.
About 204 frost-free days a year
In half of years the last 32° night comes by April 8 and the first one by November 1. That leaves about 204 frost-free days for gardens, longer than 75% of U.S. towns.
Heating and cooling a home in Big Water
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Big Water, 72% of that work is heating and 28% is cooling.
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 Big Water 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 Big Water averaged 1.4° warmer than the 1900s. The biggest change is in January (+2.8°). The shift is larger than in 64% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Big Water’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. December swings the most: between 1991 and 2020 its average temperature ranged from 29° to 41°. July is the most reliable, staying within 8°.
Common questions about Big Water’s climate
What is the coldest month in Big Water?
December, with a typical high of 45° and a low of 25°.
What is the hottest month in Big Water?
July, with a typical high of 99° and a low of 68°. About 101 days a year reach 90°.
How much snow does Big Water get?
Almost none. A normal year brings 0.6 inches.
When is the first frost in Big Water?
In half of years the first 32° night comes by November 1, and the last spring frost by April 8.
What is the rainiest month in Big Water?
August, with 1.0 inches of rain and melted snow. The year totals 7 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Big Water itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Wahweap, AZ (11 mi, snow) and Big Water, UT (1 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.