Tremonton, Utah climate: Normal weather by month, frost dates and records
Tremonton's normal year runs from 19°F January nights to 91°F July afternoons, with 16.1 inches of precipitation and 40 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 10.5°C, January lows of −7°C, July highs of 33°C, 408 mm of precipitation a year.
- NOAA stationTremonton
- Station IDUSC00428817
- Location41.71°N 112.16°W
- Elevation4,310 ft (1,314 m)
- Population12,677
On October 23, the normal high in Tremonton is 61°F and the normal low 35°F, and the chance of measurable rain or snow is 23%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Tremonton.
- Jan 36° 19°
- Feb 41° 23°
- Mar 53° 32°
- Apr 61° 37°
- May 70° 46°
- Jun 81° 53°
- Jul 91° 62°
- Aug 90° 60°
- Sep 79° 50°
- Oct 65° 38°
- Nov 49° 28°
- Dec 37° 21°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Tremonton each month?
July is the warmest month, with normal highs of 91°F; January the coldest, with normal lows of 19°F. The most precipitation falls in January (2.09 in), the least in July (0.59 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 36°F | 19°F | 27.5°F | 2.09 | 12.2 | 10 | <1 | 30 | 9 h 30 min |
| February | 41°F | 23°F | 32.1°F | 1.49 | 8.7 | 9 | <1 | 24 | 10 h 30 min |
| March | 53°F | 32°F | 42.6°F | 1.33 | 2.8 | 7 | <1 | 15 | 11 h 50 min |
| April | 61°F | 37°F | 49.0°F | 1.43 | 0.8 | 9 | <1 | 7 | 13 h 20 min |
| May | 70°F | 46°F | 57.8°F | 2.03 | 0.1 | 10 | 1 | 1 | 14 h 30 min |
| June | 81°F | 53°F | 67.1°F | 1.17 | 0.0 | 5 | 4 | <1 | 15 h 10 min |
| July | 91°F | 62°F | 76.5°F | 0.59 | 0.0 | 4 | 21 | <1 | 15 h |
| August | 90°F | 60°F | 74.9°F | 0.75 | 0.0 | 4 | 17 | <1 | 13 h 50 min |
| September | 79°F | 50°F | 64.7°F | 1.08 | 0.0 | 6 | 2 | <1 | 12 h 30 min |
| October | 65°F | 38°F | 51.2°F | 1.51 | 0.5 | 7 | <1 | 6 | 11 h 10 min |
| November | 49°F | 28°F | 38.6°F | 1.00 | 4.4 | 7 | <1 | 22 | 9 h 50 min |
| December | 37°F | 21°F | 29.2°F | 1.60 | 10.9 | 9 | <1 | 28 | 9 h 10 min |
| Year (annual) | 63°F | 39°F | 50.9°F | 16.07 | 40.4 | 86 | 45 | 132 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 2°C | −7°C | −2.5°C | 53 mm | 31 cm |
| February | 5°C | −5°C | 0.1°C | 38 mm | 22 cm |
| March | 12°C | 0°C | 5.9°C | 34 mm | 7 cm |
| April | 16°C | 3°C | 9.4°C | 36 mm | 2 cm |
| May | 21°C | 8°C | 14.3°C | 52 mm | 0 cm |
| June | 27°C | 12°C | 19.5°C | 30 mm | 0 cm |
| July | 33°C | 17°C | 24.7°C | 15 mm | 0 cm |
| August | 32°C | 16°C | 23.8°C | 19 mm | 0 cm |
| September | 26°C | 10°C | 18.2°C | 27 mm | 0 cm |
| October | 18°C | 3°C | 10.7°C | 38 mm | 1 cm |
| November | 9°C | −2°C | 3.7°C | 25 mm | 11 cm |
| December | 3°C | −6°C | −1.6°C | 41 mm | 28 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00428817; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Tremonton?
Normal highs sit between 65°F and 85°F in May, June and September. Of those, June has the fewest days with rain (5).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00428817.
When is the last frost in Tremonton?
In Tremonton, the last spring frost (32°F) comes after April 24 in half of years and after May 9 in one year in ten; the first autumn frost comes before October 17 in half of years and before October 3 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- April 241 year in 10 after May 9; 9 in 10 after April 8
- First autumn frost, half of years before
- October 171 year in 10 before October 3; 9 in 10 before November 1
NOAA puts the median frost-free season at 175 days, and the season without a hard freeze (28°F) at 199 days.
A hard freeze (28°F) comes after April 9 in half of springs and before October 26 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Tremonton in zone 6b in ZIP code 84312, the nearest ZIP area.
Frost dates for every NOAA station in Utah · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00428817; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Tremonton?
In a normal year in Tremonton, 45 days a year reach 90°F (3 of them 100°F or more), 132 nights fall to 32°F or colder and 86 days bring measurable precipitation.
- Days at 90°F or more
- 45a normal year
- Days at 100°F or more
- 3a normal year
- Nights at 32°F or colder
- 132a normal year
- Days that stay below freezing
- 26high of 32°F or less
- Days with 0.01 inch of precipitation
- 86a normal year
- Days with 1 inch of snow or more
- 15a normal year
The highest temperature in this station's record (since 1913) is 105°F, on July 13, 2002; the lowest is −25°F, on February 10, 1933.
The wettest calendar year on that record is 1983, with 30.85 in; the snowiest season is 1983–84, with 83.7 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00428817; records: ACIS (NOAA Regional Climate Centers), station USC00428817. Records use complete months only; a month missing more than three days is left out.
How sunny is Tremonton?
Over a year 80% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Tremonton, 4.7 kWh per square metre a day. July is the sunniest month (90%) and January the cloudiest (58%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 58% | 1.7 |
| February | 64% | 2.7 |
| March | 73% | 4.2 |
| April | 78% | 5.7 |
| May | 80% | 6.7 |
| June | 87% | 7.7 |
| July | 90% | 7.6 |
| August | 90% | 6.7 |
| September | 87% | 5.3 |
| October | 82% | 3.7 |
| November | 73% | 2.3 |
| December | 58% | 1.5 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Tremonton need?
A normal year in Tremonton brings 6,008 heating degree days, 12% more than the median U.S. place (5,373), and 916 cooling degree days, 1% more than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 3,035 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,162 | 0 |
| February | 921 | 0 |
| March | 693 | 0 |
| April | 481 | 1 |
| May | 246 | 23 |
| June | 68 | 131 |
| July | 6 | 364 |
| August | 5 | 310 |
| September | 94 | 85 |
| October | 430 | 2 |
| November | 792 | 0 |
| December | 1,110 | 0 |
| Year (annual) | 6,008 | 916 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00428817. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
How does Tremonton's climate compare?
Tremonton is warmer than 61 of the other 96 places with their own NOAA record in Utah, and wetter than 66. Across the 7,247 U.S. stations with normals, its annual mean of 50.9°F is warmer than 44%.
In the Köppen classification computed from these normals, Tremonton is Dsa: continental, dry-summer, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Tremonton share this climate record?
5 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Garland, UT2,772 people · 2 mi N
- Honeyville, UT1,783 people · 7 mi SE
- Elwood, UT1,333 people · 3 mi SE
- Bear River City, UT901 people · 7 mi S
- Deweyville, UT455 people · 4 mi E
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Tremonton's climate
What is the coldest month in Tremonton?
January, with a normal high of 36°F and a normal low of 19°F. The warmest is July (91°F by day, 62°F at night).
Does it snow in Tremonton?
Yes: 40 inches in a normal year, falling on 23 days with 0.1 inch or more, the most in January (12.2 inches).
What is the rainiest month in Tremonton?
January, with 2.09 in of precipitation in a normal year; the driest is July with 0.59 in.
What plant hardiness zone is Tremonton in?
The USDA's 2023 map puts Tremonton in zone 6b in ZIP code 84312, the nearest ZIP area.
How late can frost come in Tremonton?
In half of years the last 32°F night comes after April 24; in one year in ten it comes after May 9. Waiting until May 9 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Utah climateThe statewide normals and every place in the state
- Cutler Dam, UT10 miles from this station, 48.8°F a year
- Thiokol Propulsion F S, UT14 miles from this station, 45.4°F a year
- Brigham City, UT14 miles from this station, 50.1°F a year
- Logan, UT17 miles from this station, 47.6°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made