Johnson Pass, Utah climate: Climate normals at a NOAA weather station
Johnson Pass's normal year runs from 19°F December nights to 91°F July afternoons, with 15.7 inches of precipitation and 68 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 9.9°C, December lows of −7°C, July highs of 33°C, 399 mm of precipitation a year.
- NOAA stationJohnson Pass
- Station IDUSC00424362
- Location40.34°N 112.61°W
- Elevation5,580 ft (1,701 m)
On October 22, the normal high in Johnson Pass is 59°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 Johnson Pass.
- Jan 39° 19°
- Feb 43° 22°
- Mar 52° 29°
- Apr 58° 34°
- May 70° 42°
- Jun 82° 51°
- Jul 91° 59°
- Aug 88° 58°
- Sep 77° 49°
- Oct 62° 38°
- Nov 48° 27°
- Dec 38° 19°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like at Johnson Pass each month?
July is the warmest month, with normal highs of 91°F; December the coldest, with normal lows of 19°F. The most precipitation falls in May (1.85 in), the least in July (0.81 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 39°F | 19°F | 28.7°F | 1.55 | 14.2 | 9 | <1 | 30 | 9 h 40 min |
| February | 43°F | 22°F | 32.7°F | 1.62 | 15.3 | 9 | <1 | 25 | 10 h 40 min |
| March | 52°F | 29°F | 40.4°F | 1.44 | 10.0 | 8 | <1 | 21 | 11 h 50 min |
| April | 58°F | 34°F | 46.2°F | 1.68 | 7.2 | 9 | <1 | 14 | 13 h 10 min |
| May | 70°F | 42°F | 56.0°F | 1.85 | 0.7 | 8 | 1 | 4 | 14 h 20 min |
| June | 82°F | 51°F | 66.2°F | 0.99 | 0.1 | 5 | 9 | <1 | 15 h |
| July | 91°F | 59°F | 75.2°F | 0.81 | 0.0 | 6 | 23 | <1 | 14 h 50 min |
| August | 88°F | 58°F | 72.9°F | 0.92 | 0.0 | 6 | 18 | <1 | 13 h 50 min |
| September | 77°F | 49°F | 63.2°F | 1.09 | 0.0 | 6 | 3 | 1 | 12 h 30 min |
| October | 62°F | 38°F | 50.0°F | 1.16 | 1.6 | 7 | <1 | 8 | 11 h 10 min |
| November | 48°F | 27°F | 37.5°F | 1.22 | 7.5 | 7 | <1 | 22 | 10 h |
| December | 38°F | 19°F | 28.4°F | 1.39 | 11.7 | 9 | <1 | 29 | 9 h 20 min |
| Year (annual) | 62°F | 37°F | 49.8°F | 15.72 | 68.3 | 89 | 52 | 154 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 4°C | −7°C | −1.8°C | 39 mm | 36 cm |
| February | 6°C | −5°C | 0.4°C | 41 mm | 39 cm |
| March | 11°C | −2°C | 4.7°C | 37 mm | 25 cm |
| April | 15°C | 1°C | 7.9°C | 43 mm | 18 cm |
| May | 21°C | 6°C | 13.3°C | 47 mm | 2 cm |
| June | 28°C | 10°C | 19.0°C | 25 mm | 0 cm |
| July | 33°C | 15°C | 24.0°C | 21 mm | 0 cm |
| August | 31°C | 14°C | 22.7°C | 23 mm | 0 cm |
| September | 25°C | 10°C | 17.3°C | 28 mm | 0 cm |
| October | 17°C | 3°C | 10.0°C | 29 mm | 4 cm |
| November | 9°C | −3°C | 3.1°C | 31 mm | 19 cm |
| December | 3°C | −7°C | −2.0°C | 35 mm | 30 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00424362; 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.
Which months are mildest at Johnson Pass?
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 USC00424362.
When is the last frost at Johnson Pass?
In Johnson Pass, the last spring frost (32°F) comes after May 15 in half of years and after June 4 in one year in ten; the first autumn frost comes before October 5 in half of years and before September 22 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 151 year in 10 after June 4; 9 in 10 after April 27
- First autumn frost, half of years before
- October 51 year in 10 before September 22; 9 in 10 before October 22
NOAA puts the median frost-free season at 142 days, and the season without a hard freeze (28°F) at 169 days.
A hard freeze (28°F) comes after April 30 in half of springs and before October 16 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Johnson Pass in zone 6b in ZIP code 84022, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, the station is in zone 6b: the coldest night of a typical year reaches 0°F (18 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 USC00424362; 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 at Johnson Pass?
In a normal year in Johnson Pass, 52 days a year reach 90°F (4 of them 100°F or more), 154 nights fall to 32°F or colder and 89 days bring measurable precipitation.
- Days at 90°F or more
- 52a normal year
- Days at 100°F or more
- 4a normal year
- Nights at 32°F or colder
- 154a normal year
- Days that stay below freezing
- 18high of 32°F or less
- Days with 0.01 inch of precipitation
- 89a normal year
- Days with 1 inch of snow or more
- 24a normal year
The highest temperature in this station's record (since 1972) is 107°F, on July 13, 2002; the lowest is −19°F, on December 23, 1990.
The wettest calendar year on that record is 1983, with 29.59 in; the snowiest season is 1983–84, with 143.6 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00424362; records: ACIS (NOAA Regional Climate Centers), station USC00424362. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Johnson Pass?
Over a year 81% of the sunlight that would reach the ground under clear skies gets through the clouds at Johnson Pass, 4.8 kWh per square metre a day. July is the sunniest month (88%) and December the cloudiest (66%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 69% | 2.1 |
| February | 71% | 3.1 |
| March | 75% | 4.4 |
| April | 77% | 5.8 |
| May | 80% | 6.8 |
| June | 88% | 7.8 |
| July | 88% | 7.4 |
| August | 87% | 6.6 |
| September | 87% | 5.4 |
| October | 82% | 3.9 |
| November | 75% | 2.5 |
| December | 66% | 1.8 |
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 many heating and cooling degree days does Johnson Pass record?
A normal year at Johnson Pass brings 6,314 heating degree days, 18% more than the median U.S. place (5,373), and 794 cooling degree days, 12% fewer than the median (908). Eight months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,803 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,127 | 0 |
| February | 906 | 0 |
| March | 763 | 0 |
| April | 567 | 1 |
| May | 302 | 21 |
| June | 87 | 125 |
| July | 6 | 321 |
| August | 10 | 256 |
| September | 122 | 68 |
| October | 468 | 3 |
| November | 824 | 0 |
| December | 1,134 | 0 |
| Year (annual) | 6,314 | 794 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00424362. 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 Johnson Pass's climate compare?
Johnson Pass is warmer than 50 of the 97 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 49.8°F is warmer than 39%.
In the Köppen classification computed from these normals, Johnson Pass is Dfa: continental, no dry season, 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 Johnson Pass share this climate record?
Rush Valley has no NOAA station with 1991-2020 normals of its 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.
- Rush Valley, UT484 people · 9 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 Johnson Pass's climate
What is the coldest month at Johnson Pass?
December, with a normal high of 38°F and a normal low of 19°F. The warmest is July (91°F by day, 59°F at night).
Does it snow at Johnson Pass?
Yes: 68 inches in a normal year, falling on 33 days with 0.1 inch or more, the most in February (15.3 inches).
What is the rainiest month at Johnson Pass?
May, with 1.85 in of precipitation in a normal year; the driest is July with 0.81 in.
What plant hardiness zone is Johnson Pass in?
The USDA's 2023 map puts Johnson Pass in zone 6b in ZIP code 84022, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches 0°F (18 years, 1991-2020): zone 6b.
How late can frost come at Johnson Pass?
In half of years the last 32°F night comes after May 15; in one year in ten it comes after June 4. Waiting until June 4 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Utah climateThe statewide normals and every place in the state
- Grantsville, UT19 miles from this station, 51.2°F a year
- Vernon, UT19 miles from this station, 46.9°F a year
- Dugway, UT19 miles from this station, 51.7°F a year
- Tooele, UT21 miles from this station, 52.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made