Fryer Hotel · Photo: Tricia Simpson · CC BY-SA 4.0Precipitation in Deweyville trails that of 93% of U.S. towns: 15 inches a year
Expect July afternoons of about 91°. May is the wettest month here, with about 4.2 times the rain of July. Summer afternoons here are warmer than in 83% of U.S. towns. Keep the boiler serviced for the months from October to April, which average under 50°.
A year in Deweyville at a glance
Each month’s typical high and low, and what it brings.
What stands out about Deweyville’s climate
Compared with towns across the U.S., with Deweyville’s place in Utah beside it.
What a year in Deweyville feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 175 frost-free days a year
In half of years the last 32° night comes by April 24 and the first by October 17. Frost and day counts come from NOAA’s station at Tremonton, UT, 4 miles from the town’s center, at about the same height.
The 2023 USDA map puts Deweyville’s center in zone 6b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −3°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 40 inches of snow a winter
Snow, measured at Tremonton, UT, falls mostly in January. Precipitation (rain plus melted snow) adds up to 15 inches a year; May is the wettest month and July the driest. Rain or snow falls on about 86 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Deweyville
87% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through April.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Tremonton, UT.
Living with Deweyville’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
175 frost-free days in zone 6b. The last frost comes by Apr 24 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 17.
Months with highs of 62–84° and lows of 40° or more: May, June and September. 5.3 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Deweyville from natural hazards, earthquakes are the largest share (33%); heat waves, cold waves, winter storms and ice storms together are 4%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Deweyville and its neighbors
Every town next door is within a degree of Deweyville in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Deweyville’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Deweyville, UT | 18° | 91° | 15" | 40" |
| Sterling, CO | 16° | 91° | 16" | 37" |
| Scottsbluff, NE | 15° | 90° | 15" | 43" |
| Torrington, WY | 14° | 90° | 13" | 31" |
| Elko, NV | 15° | 90° | 10" | 41" |
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
Warmer than it used to be
The last 30 years in Deweyville averaged 1.6° warmer than the 1900s. The biggest change is in March (+3.4°).
A bigger shift than in 64% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Deweyville compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Deweyville’s place among Utah’s.
Deweyville weather by month
Highs, lows and precipitation from NOAA’s grid at Deweyville’s center; snow, wet days and snow on the ground from Tremonton, UT. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 34° | 18° | 1.4" | 12.2" | 10 | 20 | 13° – 36° |
| February | 40° | 22° | 1.2" | 8.7" | 9 | 17 | 19° – 41° |
| March | 52° | 30° | 1.3" | 2.8" | 7 | 4 | 34° – 46° |
| April | 60° | 36° | 1.6" | 0.8" | 9 | 1 | 43° – 54° |
| May | 71° | 44° | 2.0" | 0.1" | 10 | 0 | 51° – 62° |
| June | 81° | 51° | 1.0" | 0.0" | 5 | 0 | 60° – 72° |
| July | 91° | 59° | 0.5" | 0.0" | 4 | 0 | 65° – 80° |
| August | 89° | 57° | 0.7" | 0.0" | 4 | 0 | 68° – 77° |
| September | 79° | 47° | 1.1" | 0.0" | 6 | 0 | 59° – 67° |
| October | 64° | 36° | 1.5" | 0.5" | 7 | 1 | 42° – 57° |
| November | 48° | 27° | 1.0" | 4.4" | 7 | 4 | 30° – 43° |
| December | 36° | 19° | 1.3" | 10.9" | 9 | 13 | 20° – 35° |
| Year | 62° | 37° | 14.5" | 40.4" | 86 | 58 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 19° to 41°. September is the most reliable, staying within 8°.
Where Deweyville’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Deweyville’s center.
- Snow: Tremonton, UT.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Tremonton, UT, 4 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Deweyville’s climate
What is the weather like in Deweyville?
A typical July afternoon reaches 91°, a January night drops to 18°, and about 40 inches of snow falls in a normal winter. Colder January nights than 71% of U.S. towns; hotter July afternoons than 83% of U.S. towns.
How cold does it get in Deweyville in winter?
January nights average 18°. About 132 nights a year reach 32° or below and 2 reach 0° or below. In the coldest January of the last 30 years the month averaged 13°.
How much snow does Deweyville get?
About 40 inches in a normal winter at Tremonton, UT, most of it in January, with snow on the ground about 58 days a year.
How hot does it get in Deweyville?
July, with a typical high of 91° and a low of 59°. About 45 days a year reach 90° and 3 reach 100° (Tremonton, UT).
When is the first and last frost in Deweyville?
In half of years the last spring frost (32°) comes by April 24 and the first fall frost by October 17, about 175 frost-free days, at Tremonton, UT.
What growing zone is Deweyville in?
Zone 6b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −3°.
What is the best time of year to visit Deweyville?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Deweyville getting warmer?
Yes: 1991–2020 averaged 1.6° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 64% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Deweyville.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.