Timpanogos Cave, Utah climate: Climate normals at a NOAA weather station
Timpanogos Cave's normal year runs from 22°F December nights to 88°F July afternoons, with 28.0 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 9.4°C, December lows of −6°C, July highs of 31°C, 712 mm of precipitation a year.
- NOAA stationTimpanogos Cave
- Station IDUSC00428733
- Location40.44°N 111.71°W
- Elevation5,740 ft (1,750 m)
On October 23, the normal high in Timpanogos Cave is 56°F and the normal low 37°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Timpanogos Cave.
- Jan 34° 22°
- Feb 40° 24°
- Mar 49° 31°
- Apr 56° 35°
- May 66° 44°
- Jun 78° 52°
- Jul 88° 60°
- Aug 87° 58°
- Sep 76° 50°
- Oct 60° 39°
- Nov 44° 30°
- Dec 33° 22°
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 Timpanogos Cave each month?
July is the warmest month, with normal highs of 88°F; December the coldest, with normal lows of 22°F. The most precipitation falls in May (3.39 in), the least in July (1.08 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 34°F | 22°F | 28.0°F | 3.17 | – | <1 | 29 | 9 h 30 min |
| February | 40°F | 24°F | 32.0°F | 2.87 | – | <1 | 24 | 10 h 40 min |
| March | 49°F | 31°F | 39.9°F | 2.92 | – | <1 | 19 | 11 h 50 min |
| April | 56°F | 35°F | 45.7°F | 3.19 | – | <1 | 10 | 13 h 10 min |
| May | 66°F | 44°F | 55.0°F | 3.39 | – | <1 | 2 | 14 h 20 min |
| June | 78°F | 52°F | 65.0°F | 1.47 | – | 5 | <1 | 15 h |
| July | 88°F | 60°F | 73.7°F | 1.08 | – | 19 | <1 | 14 h 50 min |
| August | 87°F | 58°F | 72.4°F | 1.47 | – | 14 | <1 | 13 h 50 min |
| September | 76°F | 50°F | 62.8°F | 2.15 | – | 2 | <1 | 12 h 30 min |
| October | 60°F | 39°F | 49.4°F | 2.31 | – | <1 | 6 | 11 h 10 min |
| November | 44°F | 30°F | 37.0°F | 2.12 | – | <1 | 19 | 10 h |
| December | 33°F | 22°F | 27.5°F | 1.88 | – | <1 | 28 | 9 h 20 min |
| Year (annual) | 59°F | 39°F | 49.0°F | 28.02 | – | 41 | 139 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 1°C | −6°C | −2.2°C | 81 mm |
| February | 4°C | −4°C | 0.0°C | 73 mm |
| March | 9°C | −1°C | 4.4°C | 74 mm |
| April | 13°C | 2°C | 7.6°C | 81 mm |
| May | 19°C | 6°C | 12.8°C | 86 mm |
| June | 26°C | 11°C | 18.3°C | 37 mm |
| July | 31°C | 15°C | 23.2°C | 27 mm |
| August | 30°C | 15°C | 22.4°C | 37 mm |
| September | 24°C | 10°C | 17.1°C | 55 mm |
| October | 15°C | 4°C | 9.7°C | 59 mm |
| November | 7°C | −1°C | 2.8°C | 54 mm |
| December | 1°C | −6°C | −2.5°C | 48 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Alpine (4 miles away), gets 74 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00428733; 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 Timpanogos Cave?
Normal highs sit between 65°F and 85°F in May, June and September.
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 USC00428733.
When is the last frost at Timpanogos Cave?
In Timpanogos Cave, the last spring frost (32°F) comes after May 2 in half of years and after May 26 in one year in ten; the first autumn frost comes before October 16 in half of years and before October 1 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 26; 9 in 10 after April 17
- First autumn frost, half of years before
- October 161 year in 10 before October 1; 9 in 10 before October 31
NOAA puts the median frost-free season at 161 days, and the season without a hard freeze (28°F) at 192 days.
A hard freeze (28°F) comes after April 16 in half of springs and before October 26 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Timpanogos Cave in zone 6a in ZIP code 84003, 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 USC00428733; 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 at Timpanogos Cave?
In a normal year in Timpanogos Cave, 41 days a year reach 90°F (3 of them 100°F or more) and 139 nights fall to 32°F or colder.
- Days at 90°F or more
- 41a normal year
- Days at 100°F or more
- 3a normal year
- Nights at 32°F or colder
- 139a normal year
- Days that stay below freezing
- 30high of 32°F or less
The highest temperature in this station's record (since 1947) is 107°F, on July 13, 2002; the lowest is −14°F, on December 23, 1990.
The wettest calendar year on that record is 1964, with 33.26 in; the snowiest season is 1951–52, with 208.6 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00428733; records: ACIS (NOAA Regional Climate Centers), station USC00428733. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Timpanogos Cave?
Over a year 80% of the sunlight that would reach the ground under clear skies gets through the clouds at Timpanogos Cave, 4.8 kWh per square metre a day. July is the sunniest month (88%) and December the cloudiest (67%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 71% | 2.3 |
| February | 72% | 3.2 |
| March | 75% | 4.5 |
| April | 74% | 5.6 |
| May | 77% | 6.6 |
| June | 86% | 7.8 |
| July | 88% | 7.5 |
| August | 86% | 6.6 |
| September | 85% | 5.4 |
| October | 80% | 3.8 |
| November | 72% | 2.5 |
| December | 67% | 1.9 |
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 Timpanogos Cave record?
A normal year at Timpanogos Cave brings 6,466 heating degree days, 20% more than the median U.S. place (5,373), and 675 cooling degree days, 26% 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 2,629 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,147 | 0 |
| February | 925 | 0 |
| March | 778 | 0 |
| April | 579 | 0 |
| May | 319 | 8 |
| June | 90 | 90 |
| July | 6 | 276 |
| August | 9 | 239 |
| September | 125 | 60 |
| October | 485 | 2 |
| November | 840 | 0 |
| December | 1,162 | 0 |
| Year (annual) | 6,466 | 675 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00428733. 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.
Have recent years at Timpanogos Cave been warmer than normal?
Over 40 complete years from 1949 to 2018, the station's annual mean temperature rose at a fitted 5.1°F per century (+0.29°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Timpanogos Cave's climate compare?
Timpanogos Cave is warmer than 44 of the 97 places with their own NOAA record in Utah, and wetter than 89. Across the 7,247 U.S. stations with normals, its annual mean of 49.0°F is warmer than 36%.
In the Köppen classification computed from these normals, Timpanogos Cave 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.
Questions about Timpanogos Cave's climate
What is the coldest month at Timpanogos Cave?
December, with a normal high of 33°F and a normal low of 22°F. The warmest is July (88°F by day, 60°F at night).
Does it snow at Timpanogos Cave?
Yes. NOAA publishes no 1991-2020 snowfall normal for the station; the nearest record that keeps one, Alpine (4 miles away), records 74 inches of snow in a normal year.
What is the rainiest month at Timpanogos Cave?
May, with 3.39 in of precipitation in a normal year; the driest is July with 1.08 in.
What plant hardiness zone is Timpanogos Cave in?
The USDA's 2023 map puts Timpanogos Cave in zone 6a in ZIP code 84003, the nearest ZIP area.
How late can frost come at Timpanogos Cave?
In half of years the last 32°F night comes after May 2; in one year in ten it comes after May 26. Waiting until May 26 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Utah climateThe statewide normals and every place in the state
- Alpine, UT4 miles from this station, 51.1°F a year
- Pleasant Grove, UT6 miles from this station, 54.4°F a year
- Sundance, UT8 miles from this station, 44.7°F a year
- Deer Creek Dam, UT10 miles from this station, 45.2°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made