Hayfield Pumping Plant, California climate: Climate normals at a NOAA weather station
Hayfield Pumping Plant's normal year runs from 39°F December nights to 106°F July afternoons, with 4.6 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 21.4°C, December lows of 4°C, July highs of 41°C, 117 mm of precipitation a year.
- NOAA stationHayfield Pumping Plant
- Station IDUSC00043855
- Location33.70°N 115.63°W
- Elevation1,370 ft (418 m)
On October 23, the normal high in Hayfield Pumping Plant is 86°F and the normal low 53°F, and the chance of measurable rain or snow is 3%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Hayfield Pumping Plant.
- Jan 67° 39°
- Feb 70° 41°
- Mar 77° 46°
- Apr 83° 51°
- May 92° 60°
- Jun 101° 67°
- Jul 106° 76°
- Aug 105° 76°
- Sep 100° 68°
- Oct 88° 56°
- Nov 76° 45°
- Dec 66° 39°
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 Hayfield Pumping Plant each month?
July is the warmest month, with normal highs of 106°F; December the coldest, with normal lows of 39°F. The most precipitation falls in January (0.99 in), the least in June (0.00 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 67°F | 39°F | 53.3°F | 0.99 | 3 | <1 | 5 | 10 h 10 min |
| February | 70°F | 41°F | 55.8°F | 0.75 | 3 | <1 | 3 | 11 h |
| March | 77°F | 46°F | 61.5°F | 0.46 | 2 | 2 | 1 | 12 h |
| April | 83°F | 51°F | 67.3°F | 0.14 | 1 | 8 | <1 | 13 h |
| May | 92°F | 60°F | 75.6°F | 0.10 | 1 | 20 | <1 | 13 h 50 min |
| June | 101°F | 67°F | 84.1°F | 0.00 | <1 | 28 | <1 | 14 h 20 min |
| July | 106°F | 76°F | 90.5°F | 0.21 | 1 | 31 | <1 | 14 h 10 min |
| August | 105°F | 76°F | 90.4°F | 0.37 | 2 | 31 | <1 | 13 h 30 min |
| September | 100°F | 68°F | 83.7°F | 0.50 | 1 | 28 | <1 | 12 h 30 min |
| October | 88°F | 56°F | 71.9°F | 0.25 | 1 | 15 | <1 | 11 h 20 min |
| November | 76°F | 45°F | 60.3°F | 0.18 | 1 | 1 | 1 | 10 h 30 min |
| December | 66°F | 39°F | 52.4°F | 0.66 | 3 | <1 | 8 | 10 h |
| Year (annual) | 86°F | 55°F | 70.6°F | 4.61 | 18 | 163 | 18 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 19°C | 4°C | 11.8°C | 25 mm |
| February | 21°C | 5°C | 13.2°C | 19 mm |
| March | 25°C | 8°C | 16.4°C | 12 mm |
| April | 29°C | 11°C | 19.6°C | 4 mm |
| May | 33°C | 15°C | 24.2°C | 3 mm |
| June | 38°C | 20°C | 28.9°C | 0 mm |
| July | 41°C | 24°C | 32.5°C | 5 mm |
| August | 41°C | 24°C | 32.4°C | 9 mm |
| September | 38°C | 20°C | 28.7°C | 13 mm |
| October | 31°C | 13°C | 22.2°C | 6 mm |
| November | 24°C | 7°C | 15.7°C | 5 mm |
| December | 19°C | 4°C | 11.3°C | 17 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00043855; 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 Hayfield Pumping Plant?
Normal highs sit between 65°F and 85°F in January, February, March, April, November and December. Of those, November 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 USC00043855.
When is the last frost at Hayfield Pumping Plant?
In Hayfield Pumping Plant, the last spring frost (32°F) comes after February 20 in half of years and after March 20 in one year in ten; the first autumn frost comes before November 30 in half of years and before November 10 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
- February 201 year in 10 after March 20; 9 in 10 after January 19
- First autumn frost, half of years before
- November 301 year in 10 before November 10; 9 in 10 before December 19
NOAA puts the median frost-free season at 283 days, and the season without a hard freeze (28°F) at 329 days.
A hard freeze (28°F) comes after January 21 in half of springs and before December 13 in half of autumns.
By the USDA's method, the average of each year's coldest night over 1991-2020, the station is in plant hardiness zone 9a: the coldest night of a typical year reaches 25°F (21 complete years).
Frost dates for every NOAA station in California · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00043855; 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 Hayfield Pumping Plant?
In a normal year in Hayfield Pumping Plant, 163 days a year reach 90°F (101 of them 100°F or more), 18 nights fall to 32°F or colder and 18 days bring measurable precipitation.
- Days at 90°F or more
- 163a normal year
- Days at 100°F or more
- 101a normal year
- Nights at 32°F or colder
- 18a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 18a normal year
The highest temperature in this station's record (since 1933) is 121°F, on July 9, 2024; the lowest is 14°F, on January 7, 1950.
The wettest calendar year on that record is 1939, with 12.18 in; the snowiest season is 1948–49, with 4.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00043855; records: ACIS (NOAA Regional Climate Centers), station USC00043855. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Hayfield Pumping Plant?
Over a year 94% of the sunlight that would reach the ground under clear skies gets through the clouds at Hayfield Pumping Plant, 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 | 89% | 4.5 |
| March | 92% | 5.9 |
| April | 94% | 7.3 |
| May | 96% | 8.2 |
| June | 97% | 8.5 |
| July | 94% | 7.8 |
| August | 95% | 7.3 |
| September | 96% | 6.3 |
| October | 95% | 5.0 |
| November | 91% | 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 Hayfield Pumping Plant record?
A normal year at Hayfield Pumping Plant brings 1,414 heating degree days, 74% fewer than the median U.S. place (5,373), and 3,479 cooling degree days, 3.8 times the median (908). Two months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 7,631 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 366 | 1 |
| February | 261 | 4 |
| March | 148 | 39 |
| April | 52 | 121 |
| May | 8 | 336 |
| June | 0 | 573 |
| July | 0 | 790 |
| August | 0 | 787 |
| September | 0 | 560 |
| October | 18 | 234 |
| November | 172 | 31 |
| December | 390 | 1 |
| Year (annual) | 1,414 | 3,479 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00043855. 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 Hayfield Pumping Plant been warmer than normal?
2024 averaged 73.0°F, 2.4°F above the 1991-2020 normal of 70.6°F.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2024 | 73.0°F | +2.4°F | 2.84 |
Over 67 complete years from 1935 to 2024, the station's annual mean temperature rose at a fitted 4.1°F per century (+0.23°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00043855; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Hayfield Pumping Plant's climate compare?
Hayfield Pumping Plant is warmer than 211 of the 219 places with their own NOAA record in California, and wetter than 13. Across the 7,247 U.S. stations with normals, its annual mean of 70.6°F is warmer than 96%.
In the Köppen classification computed from these normals, Hayfield Pumping Plant 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 Hayfield Pumping Plant's climate
What is the coldest month at Hayfield Pumping Plant?
December, with a normal high of 66°F and a normal low of 39°F. The warmest is July (106°F by day, 76°F at night).
Does it snow at Hayfield Pumping Plant?
Rarely: NOAA's normal is no measurable snow a year.
What is the rainiest month at Hayfield Pumping Plant?
January, with 0.99 in of precipitation in a normal year; the driest is June with 0.00 in.
What plant hardiness zone is Hayfield Pumping Plant in?
By the same method at the station, the coldest night of a typical year reaches 25°F (21 years, 1991-2020): zone 9a.
How late can frost come at Hayfield Pumping Plant?
In half of years the last 32°F night comes after February 20; in one year in ten it comes after March 20. Waiting until March 20 leaves about a one-in-ten chance of a later frost.
Nearby and next
- California climateThe statewide normals and every place in the state
- Chiriaco Summit, CA6 miles from this station, 69.4°F a year
- Eagle Mountain, CA12 miles from this station, 73.6°F a year
- Mecca, CA27 miles from this station, 74.7°F a year
- Desert Resorts Regional Airport, CA31 miles from this station, 72.5°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made