Oak City, Utah climate: Normal weather by month, frost dates and records
Oak City's normal year runs from 20°F January nights to 93°F July afternoons, with 13.9 inches of precipitation and 33 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 11.3°C, January lows of −7°C, July highs of 34°C, 353 mm of precipitation a year.
- NOAA stationOak City
- Station IDUSC00426357
- Location39.38°N 112.30°W
- Elevation5,095 ft (1,553 m)
- Population633
On October 23, the normal high in Oak City is 62°F and the normal low 37°F, and the chance of measurable rain or snow is 15%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Oak City.
- Jan 39° 20°
- Feb 44° 24°
- Mar 55° 31°
- Apr 61° 36°
- May 73° 45°
- Jun 85° 56°
- Jul 93° 64°
- Aug 91° 62°
- Sep 81° 53°
- Oct 66° 40°
- Nov 51° 28°
- Dec 39° 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 Oak City each month?
July is the warmest month, with normal highs of 93°F; January the coldest, with normal lows of 20°F. The most precipitation falls in March (1.83 in), the least in July (0.42 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 39°F | 20°F | 29.3°F | 1.26 | 7.2 | 6 | <1 | 28 | 9 h 40 min |
| February | 44°F | 24°F | 34.1°F | 1.31 | 6.5 | 6 | <1 | 23 | 10 h 40 min |
| March | 55°F | 31°F | 42.7°F | 1.83 | 5.9 | 7 | <1 | 18 | 11 h 50 min |
| April | 61°F | 36°F | 48.6°F | 1.80 | 2.8 | 7 | <1 | 10 | 13 h 10 min |
| May | 73°F | 45°F | 58.9°F | 1.45 | 0.1 | 7 | 1 | 1 | 14 h 20 min |
| June | 85°F | 56°F | 70.4°F | 0.70 | 0.0 | 3 | 12 | <1 | 15 h |
| July | 93°F | 64°F | 78.8°F | 0.42 | 0.0 | 3 | 25 | <1 | 14 h 40 min |
| August | 91°F | 62°F | 76.7°F | 0.56 | 0.0 | 3 | 22 | <1 | 13 h 50 min |
| September | 81°F | 53°F | 66.7°F | 0.86 | 0.0 | 4 | 5 | <1 | 12 h 30 min |
| October | 66°F | 40°F | 52.7°F | 1.35 | 0.4 | 5 | <1 | 5 | 11 h 10 min |
| November | 51°F | 28°F | 39.3°F | 0.99 | 3.6 | 5 | <1 | 20 | 10 h |
| December | 39°F | 20°F | 29.3°F | 1.37 | 6.8 | 6 | <1 | 28 | 9 h 30 min |
| Year (annual) | 65°F | 40°F | 52.3°F | 13.90 | 33.3 | 60 | 64 | 134 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 4°C | −7°C | −1.5°C | 32 mm | 18 cm |
| February | 7°C | −5°C | 1.2°C | 33 mm | 17 cm |
| March | 13°C | −1°C | 5.9°C | 46 mm | 15 cm |
| April | 16°C | 2°C | 9.2°C | 46 mm | 7 cm |
| May | 23°C | 7°C | 14.9°C | 37 mm | 0 cm |
| June | 29°C | 13°C | 21.3°C | 18 mm | 0 cm |
| July | 34°C | 18°C | 26.0°C | 11 mm | 0 cm |
| August | 33°C | 17°C | 24.8°C | 14 mm | 0 cm |
| September | 27°C | 11°C | 19.3°C | 22 mm | 0 cm |
| October | 19°C | 4°C | 11.5°C | 34 mm | 1 cm |
| November | 10°C | −2°C | 4.1°C | 25 mm | 9 cm |
| December | 4°C | −7°C | −1.5°C | 35 mm | 17 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00426357; 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 Oak City?
Normal highs sit between 65°F and 85°F in May, June, September and October. Of those, June has the fewest days with rain (3).
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 USC00426357.
When is the last frost in Oak City?
In Oak City, the last spring frost (32°F) comes after May 2 in half of years and after May 21 in one year in ten; the first autumn frost comes before October 13 in half of years and before September 30 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 21 year in 10 after May 21; 9 in 10 after April 18
- First autumn frost, half of years before
- October 131 year in 10 before September 30; 9 in 10 before October 30
NOAA puts the median frost-free season at 162 days, and the season without a hard freeze (28°F) at 186 days.
A hard freeze (28°F) comes after April 20 in half of springs and before October 24 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Oak City in zone 6b in ZIP code 84649, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Oak City's NOAA station is in zone 6b: the coldest night of a typical year reaches −1°F (25 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 USC00426357; 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 Oak City?
In a normal year in Oak City, 64 days a year reach 90°F (6 of them 100°F or more), 134 nights fall to 32°F or colder and 60 days bring measurable precipitation.
- Days at 90°F or more
- 64a normal year
- Days at 100°F or more
- 6a normal year
- Nights at 32°F or colder
- 134a normal year
- Days that stay below freezing
- 20high of 32°F or less
- Days with 0.01 inch of precipitation
- 60a normal year
- Days with 1 inch of snow or more
- 12a normal year
The highest temperature in this station's record (since 1905) is 109°F, on July 26, 2016; the lowest is −25°F, on January 23, 1937.
The wettest calendar year on that record is 2005, with 20.90 in; the snowiest season is 1948–49, with 95.9 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00426357; records: ACIS (NOAA Regional Climate Centers), station USC00426357. Records use complete months only; a month missing more than three days is left out.
How sunny is Oak City?
Over a year 83% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Oak City, 5.0 kWh per square metre a day. September is the sunniest month (89%) and December the cloudiest (69%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 72% | 2.4 |
| February | 72% | 3.2 |
| March | 77% | 4.7 |
| April | 79% | 6.0 |
| May | 83% | 7.1 |
| June | 89% | 8.0 |
| July | 88% | 7.5 |
| August | 88% | 6.8 |
| September | 89% | 5.7 |
| October | 85% | 4.1 |
| November | 78% | 2.7 |
| December | 69% | 2.0 |
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 Oak City need?
A normal year in Oak City brings 5,782 heating degree days, 8% more than the median U.S. place (5,373), and 1,185 cooling degree days, 31% 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 3,440 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,105 | 0 |
| February | 867 | 0 |
| March | 690 | 0 |
| April | 493 | 3 |
| May | 229 | 42 |
| June | 48 | 208 |
| July | 1 | 428 |
| August | 3 | 364 |
| September | 78 | 130 |
| October | 393 | 11 |
| November | 770 | 0 |
| December | 1,106 | 0 |
| Year (annual) | 5,782 | 1,185 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00426357. 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 Oak City been warmer than normal lately?
2025 averaged 55.1°F, 2.8°F above the 1991-2020 normal of 52.3°F. 3 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 54.2°F | +1.9°F | 13.57 | 19.5 |
| 2022 | 51.9°F | −0.4°F | 8.08 | 25.9 |
| 2023 | 49.6°F | −2.7°F | 14.03 | – |
| 2024 | 53.7°F | +1.4°F | 13.74 | 39.9 |
| 2025 | 55.1°F | +2.8°F | 8.98 | 25.5 |
Over 79 complete years from 1907 to 2025, the station's annual mean temperature rose at a fitted 2.3°F per century (+0.13°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00426357; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Oak City's climate compare?
Oak City is warmer than 77 of the other 96 places with their own NOAA record in Utah, and wetter than 51. Across the 7,247 U.S. stations with normals, its annual mean of 52.3°F is warmer than 51%.
In the Köppen classification computed from these normals, Oak City is BSk: cold semi-arid steppe. 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 Oak City share this climate record?
2 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.
- Leamington, UT278 people · 10 mi N
- Lynndyl, UT123 people · 10 mi NW
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 Oak City's climate
What is the coldest month in Oak City?
January, with a normal high of 39°F and a normal low of 20°F. The warmest is July (93°F by day, 64°F at night).
Does it snow in Oak City?
Yes: 33 inches in a normal year, falling on 14 days with 0.1 inch or more, the most in January (7.2 inches).
What is the rainiest month in Oak City?
March, with 1.83 in of precipitation in a normal year; the driest is July with 0.42 in.
What plant hardiness zone is Oak City in?
The USDA's 2023 map puts Oak City in zone 6b in ZIP code 84649, the nearest ZIP area. By the same method at Oak City's NOAA station, the coldest night of a typical year reaches −1°F (25 years, 1991-2020): zone 6b.
How late can frost come in Oak City?
In half of years the last 32°F night comes after May 2; in one year in ten it comes after May 21. Waiting until May 21 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Utah climateThe statewide normals and every place in the state
- Scipio, UT14 miles from this station, 49.5°F a year
- Delta, UT16 miles from this station, 50.6°F a year
- Deseret, UT20 miles from this station, 51.0°F a year
- Little Sahara Rec Area, UT24 miles from this station, 50.1°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made