Kofa Mine, Arizona climate: Climate normals at a NOAA weather station
Kofa Mine's normal year runs from 48°F December nights to 104°F July afternoons, with 6.7 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 23.6°C, December lows of 9°C, July highs of 40°C, 169 mm of precipitation a year.
- NOAA stationKofa Mine
- Station IDUSC00024702
- Location33.27°N 113.97°W
- Elevation1,775 ft (541 m)
On October 23, the normal high in Kofa Mine is 85°F and the normal low 64°F, and the chance of measurable rain or snow is 5%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Kofa Mine.
- Jan 67° 49°
- Feb 70° 50°
- Mar 76° 55°
- Apr 83° 59°
- May 91° 67°
- Jun 101° 75°
- Jul 104° 81°
- Aug 103° 80°
- Sep 99° 76°
- Oct 87° 66°
- Nov 75° 56°
- Dec 66° 48°
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 Kofa Mine each month?
July is the warmest month, with normal highs of 104°F; December the coldest, with normal lows of 48°F. The most precipitation falls in August (0.92 in), the least in June (0.05 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 67°F | 49°F | 58.0°F | 0.89 | 4 | <1 | <1 | 10 h 10 min |
| February | 70°F | 50°F | 59.9°F | 0.81 | 4 | <1 | <1 | 11 h |
| March | 76°F | 55°F | 65.6°F | 0.59 | 2 | 2 | <1 | 12 h |
| April | 83°F | 59°F | 71.2°F | 0.17 | 1 | 6 | <1 | 13 h |
| May | 91°F | 67°F | 78.9°F | 0.16 | 1 | 19 | <1 | 13 h 50 min |
| June | 101°F | 75°F | 88.0°F | 0.05 | 1 | 28 | <1 | 14 h 20 min |
| July | 104°F | 81°F | 92.4°F | 0.88 | 4 | 31 | <1 | 14 h 10 min |
| August | 103°F | 80°F | 91.8°F | 0.92 | 4 | 31 | <1 | 13 h 30 min |
| September | 99°F | 76°F | 87.2°F | 0.67 | 3 | 28 | <1 | 12 h 30 min |
| October | 87°F | 66°F | 76.7°F | 0.38 | 2 | 14 | <1 | 11 h 20 min |
| November | 75°F | 56°F | 65.8°F | 0.47 | 2 | 1 | <1 | 10 h 30 min |
| December | 66°F | 48°F | 56.7°F | 0.66 | 3 | <1 | <1 | 10 h |
| Year (annual) | 85°F | 64°F | 74.4°F | 6.65 | 30 | 159 | <1 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 19°C | 9°C | 14.4°C | 23 mm |
| February | 21°C | 10°C | 15.5°C | 21 mm |
| March | 25°C | 13°C | 18.7°C | 15 mm |
| April | 28°C | 15°C | 21.8°C | 4 mm |
| May | 33°C | 19°C | 26.1°C | 4 mm |
| June | 38°C | 24°C | 31.1°C | 1 mm |
| July | 40°C | 27°C | 33.6°C | 22 mm |
| August | 40°C | 27°C | 33.2°C | 23 mm |
| September | 37°C | 24°C | 30.7°C | 17 mm |
| October | 31°C | 19°C | 24.8°C | 10 mm |
| November | 24°C | 13°C | 18.8°C | 12 mm |
| December | 19°C | 9°C | 13.7°C | 17 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00024702; 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 Kofa Mine?
Normal highs sit between 65°F and 85°F in January, February, March, April, November and December. Of those, April has the fewest days with rain (1).
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 USC00024702.
When is the last frost at Kofa Mine?
A night at 32°F or colder comes in only 16% of years in Kofa Mine (NOAA). NOAA's median date of the last spring frost is January 11 and of the first autumn frost January 9.
NOAA puts the median frost-free season at 365 days, and the season without a hard freeze (28°F) at 365 days.
By the USDA's method, the average of each year's coldest night over 1991-2020, the station is in plant hardiness zone 10a: the coldest night of a typical year reaches 35°F (26 complete years).
Frost dates for every NOAA station in Arizona · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00024702; 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 Kofa Mine?
In a normal year in Kofa Mine, 159 days a year reach 90°F (89 of them 100°F or more), nights almost never fall to freezing and 30 days bring measurable precipitation.
- Days at 90°F or more
- 159a normal year
- Days at 100°F or more
- 89a normal year
- Nights at 32°F or colder
- fewer than 1a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 30a normal year
The highest temperature in this station's record (since 1952) is 120°F, on June 20, 2017; the lowest is 23°F, on January 13, 1963.
The wettest calendar year on that record is 1983, with 15.83 in.
Source: NOAA NCEI 1991-2020 annual normals, station USC00024702; records: ACIS (NOAA Regional Climate Centers), station USC00024702. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Kofa Mine?
Over a year 93% of the sunlight that would reach the ground under clear skies gets through the clouds at Kofa Mine, 5.9 kWh per square metre a day. June is the sunniest month (97%) and December the cloudiest (87%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 88% | 3.5 |
| February | 88% | 4.5 |
| March | 91% | 5.9 |
| April | 94% | 7.3 |
| May | 96% | 8.2 |
| June | 97% | 8.5 |
| July | 92% | 7.5 |
| August | 93% | 7.0 |
| September | 94% | 6.2 |
| October | 94% | 5.0 |
| November | 92% | 3.8 |
| December | 87% | 3.1 |
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 Kofa Mine record?
A normal year at Kofa Mine brings 872 heating degree days, 84% fewer than the median U.S. place (5,373), and 4,318 cooling degree days, 4.8 times the median (908). No month reaches 300 heating degree days. For gardens and crops, NOAA counts 8,949 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 228 | 11 |
| February | 168 | 26 |
| March | 88 | 108 |
| April | 29 | 215 |
| May | 4 | 435 |
| June | 0 | 690 |
| July | 0 | 849 |
| August | 0 | 832 |
| September | 0 | 666 |
| October | 8 | 371 |
| November | 83 | 107 |
| December | 264 | 6 |
| Year (annual) | 872 | 4,318 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00024702. 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 Kofa Mine been warmer than normal?
Over 48 complete years from 1953 to 2016, the station's annual mean temperature rose at a fitted 1.7°F per century (+0.10°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 Kofa Mine's climate compare?
Kofa Mine is warmer than 93 of the 97 places with their own NOAA record in Arizona, and wetter than 13. Across the 7,247 U.S. stations with normals, its annual mean of 74.4°F is warmer than 98%.
In the Köppen classification computed from these normals, Kofa Mine is BWh: hot desert. 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 Kofa Mine's climate
What is the coldest month at Kofa Mine?
December, with a normal high of 66°F and a normal low of 48°F. The warmest is July (104°F by day, 81°F at night).
Does it snow at Kofa Mine?
Rarely: NOAA's normal is no measurable snow a year.
What is the rainiest month at Kofa Mine?
August, with 0.92 in of precipitation in a normal year; the driest is June with 0.05 in.
What plant hardiness zone is Kofa Mine in?
By the same method at the station, the coldest night of a typical year reaches 35°F (26 years, 1991-2020): zone 10a.
Nearby and next
- Arizona climateThe statewide normals and every place in the state
- Quartzsite, AZ31 miles from this station, 73.7°F a year
- Yuma (27 mi ENE), AZ33 miles from this station, 73.2°F a year
- Dateland, AZ34 miles from this station, 72.5°F a year
- Ehrenberg, AZ37 miles from this station, 73.9°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made