Coalinga, California climate: Normal weather by month, frost dates and records
Coalinga's normal year runs from 37°F December nights to 101°F July afternoons, with 8.2 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 18.8°C, December lows of 3°C, July highs of 38°C, 208 mm of precipitation a year.
- NOAA stationCoalinga
- Station IDUSC00041864
- Location36.14°N 120.36°W
- Elevation670 ft (204 m)
- Population16,722
On October 24, the normal high in Coalinga is 80°F and the normal low 49°F, and the chance of measurable rain or snow is 7%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Coalinga.
- Jan 60° 38°
- Feb 65° 41°
- Mar 72° 45°
- Apr 78° 49°
- May 87° 56°
- Jun 95° 63°
- Jul 101° 69°
- Aug 100° 67°
- Sep 95° 61°
- Oct 83° 52°
- Nov 70° 42°
- Dec 60° 37°
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 Coalinga each month?
July is the warmest month, with normal highs of 101°F; December the coldest, with normal lows of 37°F. The most precipitation falls in January (1.95 in), the least in August (0.01 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 60°F | 38°F | 49.0°F | 1.95 | 7 | <1 | 7 | 10 h |
| February | 65°F | 41°F | 52.8°F | 1.76 | 8 | <1 | 3 | 10 h 50 min |
| March | 72°F | 45°F | 58.0°F | 1.53 | 5 | 1 | <1 | 11 h 50 min |
| April | 78°F | 49°F | 63.1°F | 0.37 | 3 | 4 | <1 | 13 h |
| May | 87°F | 56°F | 71.1°F | 0.32 | 2 | 12 | <1 | 14 h |
| June | 95°F | 63°F | 78.6°F | 0.11 | <1 | 24 | <1 | 14 h 40 min |
| July | 101°F | 69°F | 84.8°F | 0.02 | <1 | 31 | <1 | 14 h 20 min |
| August | 100°F | 67°F | 83.5°F | 0.01 | <1 | 30 | <1 | 13 h 30 min |
| September | 95°F | 61°F | 77.9°F | 0.06 | <1 | 24 | <1 | 12 h 30 min |
| October | 83°F | 52°F | 67.6°F | 0.33 | 2 | 7 | <1 | 11 h 20 min |
| November | 70°F | 42°F | 55.9°F | 0.50 | 3 | <1 | 2 | 10 h 20 min |
| December | 60°F | 37°F | 48.8°F | 1.22 | 6 | <1 | 10 | 9 h 40 min |
| Year (annual) | 80°F | 52°F | 65.9°F | 8.18 | 37 | 131 | 22 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 15°C | 3°C | 9.4°C | 50 mm |
| February | 18°C | 5°C | 11.6°C | 45 mm |
| March | 22°C | 7°C | 14.4°C | 39 mm |
| April | 25°C | 9°C | 17.3°C | 9 mm |
| May | 30°C | 13°C | 21.7°C | 8 mm |
| June | 35°C | 17°C | 25.9°C | 3 mm |
| July | 38°C | 20°C | 29.3°C | 1 mm |
| August | 38°C | 19°C | 28.6°C | 0 mm |
| September | 35°C | 16°C | 25.5°C | 2 mm |
| October | 29°C | 11°C | 19.8°C | 8 mm |
| November | 21°C | 6°C | 13.3°C | 13 mm |
| December | 16°C | 3°C | 9.3°C | 31 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00041864; 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 Coalinga?
Normal highs sit between 65°F and 85°F in February, March, April, October and November. Of those, October has the fewest days with rain (2).
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 USC00041864.
When is the last frost in Coalinga?
In Coalinga, the last spring frost (32°F) comes after February 14 in half of years and after March 8 in one year in ten; the first autumn frost comes before November 30 in half of years and before November 15 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 141 year in 10 after March 8; 9 in 10 after January 10
- First autumn frost, half of years before
- November 301 year in 10 before November 15; 9 in 10 before December 21
NOAA puts the median frost-free season at 292 days, and the season without a hard freeze (28°F) at 336 days.
A hard freeze (28°F) comes after January 16 in half of springs and before December 16 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Coalinga in zone 9b in ZIP code 93210, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Coalinga's NOAA station is in zone 9b: the coldest night of a typical year reaches 26°F (18 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 USC00041864; 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 in Coalinga?
In a normal year in Coalinga, 131 days a year reach 90°F (60 of them 100°F or more), 22 nights fall to 32°F or colder and 37 days bring measurable precipitation.
- Days at 90°F or more
- 131a normal year
- Days at 100°F or more
- 60a normal year
- Nights at 32°F or colder
- 22a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 37a normal year
The highest temperature in this station's record (since 1942) is 115°F, on July 20, 2009; the lowest is 11°F, on December 22, 1990.
The wettest calendar year on that record is 1995, with 14.80 in; the snowiest season is 1956–57, with 5.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00041864; records: ACIS (NOAA Regional Climate Centers), station USC00041864. Records use complete months only; a month missing more than three days is left out.
How sunny is Coalinga?
Over a year 91% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Coalinga, 5.5 kWh per square metre a day. August is the sunniest month (98%) and January the cloudiest (75%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 75% | 2.6 |
| February | 80% | 3.7 |
| March | 84% | 5.1 |
| April | 87% | 6.5 |
| May | 93% | 7.7 |
| June | 97% | 8.5 |
| July | 98% | 8.2 |
| August | 98% | 7.5 |
| September | 97% | 6.2 |
| October | 93% | 4.6 |
| November | 85% | 3.1 |
| December | 76% | 2.4 |
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 Coalinga need?
A normal year in Coalinga brings 2,035 heating degree days, 62% fewer than the median U.S. place (5,373), and 2,404 cooling degree days, 2.6 times the median (908). Three months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 6,062 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 498 | 0 |
| February | 341 | 0 |
| March | 225 | 10 |
| April | 113 | 56 |
| May | 25 | 214 |
| June | 2 | 412 |
| July | 0 | 614 |
| August | 0 | 575 |
| September | 3 | 389 |
| October | 47 | 129 |
| November | 278 | 5 |
| December | 504 | 0 |
| Year (annual) | 2,035 | 2,404 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00041864. 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.
Has Coalinga been warmer than normal lately?
Over 39 complete years from 1945 to 2015, the station's annual mean temperature rose at a fitted 2.8°F per century (+0.15°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 Coalinga's climate compare?
Coalinga is warmer than 194 of the other 218 places with their own NOAA record in California, and wetter than 34. Across the 7,247 U.S. stations with normals, its annual mean of 65.9°F is warmer than 90%.
In the Köppen classification computed from these normals, Coalinga is BSh: hot semi-arid steppe. 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 Coalinga's climate
What is the coldest month in Coalinga?
December, with a normal high of 60°F and a normal low of 37°F. The warmest is July (101°F by day, 69°F at night).
Does it snow in Coalinga?
Rarely: NOAA's normal is no measurable snow a year.
What is the rainiest month in Coalinga?
January, with 1.95 in of precipitation in a normal year; the driest is August with 0.01 in.
What plant hardiness zone is Coalinga in?
The USDA's 2023 map puts Coalinga in zone 9b in ZIP code 93210, the nearest ZIP area. By the same method at Coalinga's NOAA station, the coldest night of a typical year reaches 26°F (18 years, 1991-2020): zone 9b.
How late can frost come in Coalinga?
In half of years the last 32°F night comes after February 14; in one year in ten it comes after March 8. Waiting until March 8 leaves about a one-in-ten chance of a later frost.
Nearby and next
- California climateThe statewide normals and every place in the state
- Priest Valley, CA19 miles from this station, 57.4°F a year
- Five Points (5 mi SSW), CA19 miles from this station, 64.3°F a year
- Kettleman City, CA24 miles from this station, 64.3°F a year
- Lemoore, CA27 miles from this station, 63.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made