Brigham City, Utah climate: Normal weather by month, frost dates and records
Brigham City's normal year runs from 18°F January nights to 91°F July afternoons, with 15.5 inches of precipitation and 38 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 10.1°C, January lows of −8°C, July highs of 33°C, 393 mm of precipitation a year.
- NOAA stationBrigham City Waste Plant
- Station IDUSC00420928
- Location41.52°N 112.04°W
- Elevation4,240 ft (1,292 m)
- Population20,319
On October 23, the normal high in Brigham City is 61°F and the normal low 34°F, and the chance of measurable rain or snow is 20%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Brigham City.
- Jan 36° 18°
- Feb 43° 22°
- Mar 54° 31°
- Apr 62° 36°
- May 71° 44°
- Jun 82° 50°
- Jul 91° 58°
- Aug 89° 56°
- Sep 79° 46°
- Oct 65° 36°
- Nov 50° 27°
- Dec 38° 20°
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 Brigham City each month?
July is the warmest month, with normal highs of 91°F; January the coldest, with normal lows of 18°F. The most precipitation falls in May (2.04 in), the least in July (0.39 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 36°F | 18°F | 27.2°F | 1.53 | 12.2 | 9 | <1 | 29 | 9 h 30 min |
| February | 43°F | 22°F | 32.4°F | 1.23 | 7.5 | 8 | <1 | 25 | 10 h 40 min |
| March | 54°F | 31°F | 42.3°F | 1.54 | 4.2 | 8 | <1 | 20 | 11 h 50 min |
| April | 62°F | 36°F | 48.8°F | 1.69 | 1.2 | 8 | <1 | 9 | 13 h 20 min |
| May | 71°F | 44°F | 57.5°F | 2.04 | 0.0 | 9 | <1 | 2 | 14 h 30 min |
| June | 82°F | 50°F | 66.2°F | 1.13 | 0.0 | 4 | 6 | <1 | 15 h 10 min |
| July | 91°F | 58°F | 74.3°F | 0.39 | 0.0 | 2 | 20 | <1 | 15 h |
| August | 89°F | 56°F | 72.4°F | 0.61 | 0.0 | 3 | 17 | <1 | 13 h 50 min |
| September | 79°F | 46°F | 62.8°F | 1.27 | 0.0 | 5 | 2 | 1 | 12 h 30 min |
| October | 65°F | 36°F | 50.3°F | 1.60 | 0.5 | 6 | <1 | 11 | 11 h 10 min |
| November | 50°F | 27°F | 38.3°F | 1.07 | 4.1 | 7 | <1 | 24 | 9 h 50 min |
| December | 38°F | 20°F | 28.7°F | 1.39 | 8.6 | 8 | <1 | 29 | 9 h 10 min |
| Year (annual) | 63°F | 37°F | 50.1°F | 15.49 | 38.3 | 76 | 45 | 149 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 2°C | −8°C | −2.7°C | 39 mm | 31 cm |
| February | 6°C | −5°C | 0.2°C | 31 mm | 19 cm |
| March | 12°C | −1°C | 5.7°C | 39 mm | 11 cm |
| April | 16°C | 2°C | 9.3°C | 43 mm | 3 cm |
| May | 22°C | 7°C | 14.2°C | 52 mm | 0 cm |
| June | 28°C | 10°C | 19.0°C | 29 mm | 0 cm |
| July | 33°C | 14°C | 23.5°C | 10 mm | 0 cm |
| August | 32°C | 13°C | 22.4°C | 15 mm | 0 cm |
| September | 26°C | 8°C | 17.1°C | 32 mm | 0 cm |
| October | 18°C | 2°C | 10.2°C | 41 mm | 1 cm |
| November | 10°C | −3°C | 3.5°C | 27 mm | 10 cm |
| December | 3°C | −7°C | −1.8°C | 35 mm | 22 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00420928; 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 Brigham City?
Normal highs sit between 65°F and 85°F in May, June and September. Of those, June has the fewest days with rain (4).
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 USC00420928.
When is the last frost in Brigham City?
In Brigham City, the last spring frost (32°F) comes after May 5 in half of years and after May 29 in one year in ten; the first autumn frost comes before October 5 in half of years and before September 20 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
- May 51 year in 10 after May 29; 9 in 10 after April 20
- First autumn frost, half of years before
- October 51 year in 10 before September 20; 9 in 10 before October 19
NOAA puts the median frost-free season at 150 days, and the season without a hard freeze (28°F) at 181 days.
A hard freeze (28°F) comes after April 18 in half of springs and before October 17 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Brigham City in zone 6b in ZIP code 84302. By the map's own method, the average of each year's coldest night over 1991-2020, Brigham City's NOAA station is in zone 6b: the coldest night of a typical year reaches −3°F (27 complete years).
Frost dates for every NOAA station in Utah · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00420928; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. 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 Brigham City?
In a normal year in Brigham City, 45 days a year reach 90°F (1 of them 100°F or more), 149 nights fall to 32°F or colder and 76 days bring measurable precipitation.
- Days at 90°F or more
- 45a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 149a normal year
- Days that stay below freezing
- 22high of 32°F or less
- Days with 0.01 inch of precipitation
- 76a normal year
- Days with 1 inch of snow or more
- 14a normal year
The highest temperature in this station's record (since 1974) is 104°F, on July 13, 2002; the lowest is −25°F, on December 23, 1990.
The wettest calendar year on that record is 1983, with 33.93 in; the snowiest season is 2007–08, with 69.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00420928; records: ACIS (NOAA Regional Climate Centers), station USC00420928. Records use complete months only; a month missing more than three days is left out.
How sunny is Brigham City?
Over a year 80% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Brigham City, 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 Brigham City need?
A normal year in Brigham City brings 6,101 heating degree days, 14% more than the median U.S. place (5,373), and 703 cooling degree days, 23% fewer 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 2,761 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,170 | 0 |
| February | 911 | 0 |
| March | 702 | 0 |
| April | 488 | 1 |
| May | 248 | 17 |
| June | 68 | 103 |
| July | 5 | 291 |
| August | 8 | 239 |
| September | 118 | 52 |
| October | 455 | 1 |
| November | 803 | 0 |
| December | 1,125 | 0 |
| Year (annual) | 6,101 | 703 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00420928. 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.
Has Brigham City been warmer than normal lately?
2025 averaged 53.5°F, 3.4°F above the 1991-2020 normal of 50.1°F. 3 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 52.0°F | +1.9°F | – | 21.2 |
| 2022 | 49.9°F | −0.2°F | 13.60 | 23.9 |
| 2023 | 49.8°F | −0.3°F | 21.25 | 60.6 |
| 2024 | 52.4°F | +2.3°F | 15.89 | – |
| 2025 | 53.5°F | +3.4°F | – | – |
Over 30 complete years from 1980 to 2025, the station's annual mean temperature rose at a fitted 6.9°F per century (+0.38°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00420928; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Brigham City's climate compare?
Brigham City is warmer than 52 of the other 96 places with their own NOAA record in Utah, and wetter than 61. Across the 7,247 U.S. stations with normals, its annual mean of 50.1°F is warmer than 40%.
In the Köppen classification computed from these normals, Brigham City 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 Brigham City share this climate record?
7 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.
- Perry, UT6,111 people · 4 mi S
- Wellsville, UT4,272 people · 9 mi NE
- Willard, UT2,355 people · 8 mi S
- Mantua, UT1,354 people · 6 mi E
- Paradise, UT1,048 people · 11 mi E
- Corinne, UT879 people · 5 mi NW
- Avon, UT499 people · 12 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 Brigham City's climate
What is the coldest month in Brigham City?
January, with a normal high of 36°F and a normal low of 18°F. The warmest is July (91°F by day, 58°F at night).
Does it snow in Brigham City?
Yes: 38 inches in a normal year, falling on 17 days with 0.1 inch or more, the most in January (12.2 inches).
What is the rainiest month in Brigham City?
May, with 2.04 in of precipitation in a normal year; the driest is July with 0.39 in.
What plant hardiness zone is Brigham City in?
The USDA's 2023 map puts Brigham City in zone 6b in ZIP code 84302. By the same method at Brigham City's NOAA station, the coldest night of a typical year reaches −3°F (27 years, 1991-2020): zone 6b.
How late can frost come in Brigham City?
In half of years the last 32°F night comes after May 5; in one year in ten it comes after May 29. Waiting until May 29 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Utah climateThe statewide normals and every place in the state
- Tremonton, UT14 miles from this station, 50.9°F a year
- Eden, UT16 miles from this station, 46.1°F a year
- Ogden Pioneer Powerhouse, UT20 miles from this station, 52.9°F a year
- Ogden NE Bench, UT20 miles from this station, 51.4°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made