Mineral, California climate: Normal weather by month, frost dates and records
Mineral's normal year runs from 24°F December nights to 83°F July afternoons, with 50.1 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 7.9°C, December lows of −4°C, July highs of 28°C, 1,272 mm of precipitation a year.
- NOAA stationMineral
- Station IDUSC00045679
- Location40.35°N 121.61°W
- Elevation4,875 ft (1,486 m)
- Population (census place)107
On October 23, the normal high in Mineral is 60°F and the normal low 31°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Mineral.
- Jan 43° 24°
- Feb 45° 24°
- Mar 49° 26°
- Apr 54° 29°
- May 63° 35°
- Jun 73° 40°
- Jul 83° 44°
- Aug 82° 42°
- Sep 77° 38°
- Oct 64° 32°
- Nov 50° 27°
- Dec 42° 24°
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 Mineral each month?
July is the warmest month, with normal highs of 83°F; December the coldest, with normal lows of 24°F. The most precipitation falls in December (9.23 in), the least in August (0.18 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 43°F | 24°F | 33.3°F | 8.29 | – | <1 | 30 | 9 h 40 min |
| February | 45°F | 24°F | 34.5°F | 8.28 | – | <1 | 27 | 10 h 40 min |
| March | 49°F | 26°F | 37.5°F | 7.56 | – | <1 | 28 | 11 h 50 min |
| April | 54°F | 29°F | 41.6°F | 4.14 | – | <1 | 23 | 13 h 10 min |
| May | 63°F | 35°F | 48.7°F | 2.76 | – | <1 | 13 | 14 h 20 min |
| June | 73°F | 40°F | 56.7°F | 1.11 | – | 1 | 4 | 15 h |
| July | 83°F | 44°F | 63.3°F | 0.20 | – | 3 | <1 | 14 h 50 min |
| August | 82°F | 42°F | 62.0°F | 0.18 | – | 3 | <1 | 13 h 50 min |
| September | 77°F | 38°F | 57.4°F | 0.51 | – | 1 | 4 | 12 h 30 min |
| October | 64°F | 32°F | 48.0°F | 2.67 | – | <1 | 18 | 11 h 10 min |
| November | 50°F | 27°F | 38.6°F | 5.16 | – | <1 | 25 | 10 h |
| December | 42°F | 24°F | 33.1°F | 9.23 | – | <1 | 29 | 9 h 20 min |
| Year (annual) | 60°F | 32°F | 46.2°F | 50.09 | – | 8 | 201 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 6°C | −5°C | 0.7°C | 211 mm |
| February | 7°C | −4°C | 1.4°C | 210 mm |
| March | 9°C | −3°C | 3.1°C | 192 mm |
| April | 12°C | −2°C | 5.3°C | 105 mm |
| May | 17°C | 1°C | 9.3°C | 70 mm |
| June | 23°C | 5°C | 13.7°C | 28 mm |
| July | 28°C | 7°C | 17.4°C | 5 mm |
| August | 28°C | 6°C | 16.7°C | 5 mm |
| September | 25°C | 3°C | 14.1°C | 13 mm |
| October | 18°C | 0°C | 8.9°C | 68 mm |
| November | 10°C | −3°C | 3.7°C | 131 mm |
| December | 6°C | −4°C | 0.6°C | 234 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Chester (20 miles away), gets 110 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00045679; 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 Mineral?
Normal highs sit between 65°F and 85°F in June, July, August 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 USC00045679.
When is the last frost in Mineral?
In Mineral, the last spring frost (32°F) comes after June 10 in half of years and after June 28 in one year in ten; the first autumn frost comes before September 13 in half of years and before August 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
- June 101 year in 10 after June 28; 9 in 10 after May 24
- First autumn frost, half of years before
- September 131 year in 10 before August 22; 9 in 10 before October 3
NOAA puts the median frost-free season at 96 days, and the season without a hard freeze (28°F) at 141 days.
A hard freeze (28°F) comes after May 19 in half of springs and before October 7 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Mineral in zones 7a to 7b across its 2 ZIP code areas (7a in 96061, the largest).
Frost dates for every NOAA station in California · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00045679; 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.
What hardiness zone is each Mineral ZIP code in?
The USDA's 2023 map gives each ZIP code area one zone. Mineral's 2 ZIP code areas run from zone 7a to 7b: 1 in 7a and 1 in 7b. Each ZIP's frost dates are in the frost tool.
Source: USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; ZIP areas in the place: Census Bureau 2020 ZCTA-to-place relationship file. A ZIP area counts when at least a tenth of its land (and 0.5 km²) lies in the place.
How hot and how cold does it get in Mineral?
In a normal year in Mineral, 8 days a year reach 90°F and 201 nights fall to 32°F or colder.
- Days at 90°F or more
- 8a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 201a normal year
- Days that stay below freezing
- 8high of 32°F or less
The highest temperature in this station's record (since 1914) is 100°F, on July 24, 1928; the lowest is −13°F, on January 20, 1937.
The wettest calendar year on that record is 1983, with 113.07 in; the snowiest season is 1951–52, with 308.6 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00045679; records: ACIS (NOAA Regional Climate Centers), station USC00045679. Records use complete months only; a month missing more than three days is left out.
How sunny is Mineral?
Over a year 84% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Mineral, 5.0 kWh per square metre a day. July is the sunniest month (96%) and December the cloudiest (67%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 70% | 2.1 |
| February | 72% | 3.0 |
| March | 72% | 4.2 |
| April | 77% | 5.7 |
| May | 83% | 7.0 |
| June | 91% | 8.2 |
| July | 96% | 8.3 |
| August | 95% | 7.3 |
| September | 93% | 5.9 |
| October | 87% | 4.1 |
| November | 75% | 2.5 |
| December | 67% | 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 much heating and cooling does Mineral need?
A normal year in Mineral brings 6,910 heating degree days, 29% more than the median U.S. place (5,373), and 78 cooling degree days, 91% 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 1,393 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 984 | 0 |
| February | 853 | 0 |
| March | 853 | 0 |
| April | 703 | 0 |
| May | 506 | 0 |
| June | 259 | 9 |
| July | 92 | 40 |
| August | 118 | 25 |
| September | 233 | 4 |
| October | 527 | 0 |
| November | 792 | 0 |
| December | 990 | 0 |
| Year (annual) | 6,910 | 78 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00045679. 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 Mineral's climate compare?
Mineral is warmer than 5 of the other 218 places with their own NOAA record in California, and wetter than 202. Across the 7,247 U.S. stations with normals, its annual mean of 46.2°F is warmer than 24%.
In the Köppen classification computed from these normals, Mineral is Csb: temperate, dry-summer, warm 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 Mineral 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.
- Manton, CA628 people · 14 mi NW
- Paynes Creek, CA23 people · 17 mi W
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 Mineral's climate
What is the coldest month in Mineral?
December, with a normal high of 42°F and a normal low of 24°F. The warmest is July (83°F by day, 44°F at night).
Does it snow in Mineral?
Yes. NOAA publishes no 1991-2020 snowfall normal for Mineral's NOAA station; the nearest record that keeps one, Chester (20 miles away), records 110 inches of snow in a normal year.
What is the rainiest month in Mineral?
December, with 9.23 in of precipitation in a normal year; the driest is August with 0.18 in.
What plant hardiness zone is Mineral in?
The USDA's 2023 map puts Mineral in zones 7a to 7b across its 2 ZIP code areas (7a in 96061, the largest).
How late can frost come in Mineral?
In half of years the last 32°F night comes after June 10; in one year in ten it comes after June 28. Waiting until June 28 leaves about a one-in-ten chance of a later frost.
Nearby and next
- California climateThe statewide normals and every place in the state
- Manzanita Lake, CA14 miles from this station, 44.5°F a year
- Chester, CA19 miles from this station, 47.7°F a year
- Canyon Dam, CA30 miles from this station, 49.1°F a year
- De Sabla, CA33 miles from this station, 57.3°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made