Markley Cove, California climate: Climate normals at a NOAA weather station
Markley Cove's normal year runs from 36°F January nights to 95°F July afternoons, with 27.9 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 15.9°C, January lows of 2°C, July highs of 35°C, 710 mm of precipitation a year.
- NOAA stationMarkley Cove
- Station IDUSC00045360
- Location38.49°N 122.12°W
- Elevation480 ft (146 m)
On October 24, the normal high in Markley Cove is 76°F and the normal low 45°F, and the chance of measurable rain or snow is 13%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Markley Cove.
- Jan 57° 36°
- Feb 61° 38°
- Mar 66° 40°
- Apr 71° 43°
- May 79° 49°
- Jun 88° 54°
- Jul 95° 57°
- Aug 94° 56°
- Sep 90° 53°
- Oct 79° 47°
- Nov 66° 41°
- Dec 58° 36°
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 Markley Cove each month?
July is the warmest month, with normal highs of 95°F; January the coldest, with normal lows of 36°F. The most precipitation falls in February (5.93 in), the least in July (0.01 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 57°F | 36°F | 46.9°F | 5.72 | 11 | <1 | 8 | 9 h 50 min |
| February | 61°F | 38°F | 49.6°F | 5.93 | 10 | <1 | 5 | 10 h 40 min |
| March | 66°F | 40°F | 53.1°F | 4.10 | 9 | <1 | 1 | 11 h 50 min |
| April | 71°F | 43°F | 57.1°F | 1.67 | 6 | 1 | <1 | 13 h 10 min |
| May | 79°F | 49°F | 63.9°F | 1.01 | 4 | 5 | <1 | 14 h 10 min |
| June | 88°F | 54°F | 71.0°F | 0.23 | 1 | 14 | <1 | 14 h 50 min |
| July | 95°F | 57°F | 75.8°F | 0.01 | <1 | 25 | <1 | 14 h 40 min |
| August | 94°F | 56°F | 75.0°F | 0.03 | <1 | 24 | <1 | 13 h 40 min |
| September | 90°F | 53°F | 71.7°F | 0.07 | 1 | 18 | <1 | 12 h 30 min |
| October | 79°F | 47°F | 63.4°F | 1.09 | 3 | 4 | <1 | 11 h 20 min |
| November | 66°F | 41°F | 53.3°F | 2.49 | 7 | <1 | 2 | 10 h 10 min |
| December | 58°F | 36°F | 46.9°F | 5.60 | 11 | <1 | 9 | 9 h 30 min |
| Year (annual) | 76°F | 46°F | 60.7°F | 27.95 | 63 | 91 | 24 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 14°C | 2°C | 8.3°C | 145 mm |
| February | 16°C | 3°C | 9.8°C | 151 mm |
| March | 19°C | 5°C | 11.7°C | 104 mm |
| April | 22°C | 6°C | 13.9°C | 42 mm |
| May | 26°C | 9°C | 17.7°C | 26 mm |
| June | 31°C | 12°C | 21.7°C | 6 mm |
| July | 35°C | 14°C | 24.3°C | 0 mm |
| August | 35°C | 13°C | 23.9°C | 1 mm |
| September | 32°C | 12°C | 22.1°C | 2 mm |
| October | 26°C | 8°C | 17.4°C | 28 mm |
| November | 19°C | 5°C | 11.8°C | 63 mm |
| December | 14°C | 2°C | 8.3°C | 142 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00045360; 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 Markley Cove?
Normal highs sit between 65°F and 85°F in March, April, May, October and November. Of those, October has the fewest days with rain (3).
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 USC00045360.
When is the last frost at Markley Cove?
In Markley Cove, the last spring frost (32°F) comes after March 6 in half of years and after April 6 in one year in ten; the first autumn frost comes before November 30 in half of years and before November 12 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
- March 61 year in 10 after April 6; 9 in 10 after January 31
- First autumn frost, half of years before
- November 301 year in 10 before November 12; 9 in 10 before December 19
NOAA puts the median frost-free season at 266 days, and the season without a hard freeze (28°F) at 330 days.
A hard freeze (28°F) comes after January 22 in half of springs and before December 15 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Markley Cove in zone 9b in ZIP code 95694, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, the station is in zone 9b: the coldest night of a typical year reaches 26°F (29 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 USC00045360; 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 at Markley Cove?
In a normal year in Markley Cove, 91 days a year reach 90°F (22 of them 100°F or more), 24 nights fall to 32°F or colder and 63 days bring measurable precipitation.
- Days at 90°F or more
- 91a normal year
- Days at 100°F or more
- 22a normal year
- Nights at 32°F or colder
- 24a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 63a normal year
The highest temperature in this station's record (since 1970) is 115°F, on July 24, 2006; the lowest is 13°F, on December 23, 1990.
The wettest calendar year on that record is 1983, with 56.91 in.
Source: NOAA NCEI 1991-2020 annual normals, station USC00045360; records: ACIS (NOAA Regional Climate Centers), station USC00045360. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Markley Cove?
Over a year 87% of the sunlight that would reach the ground under clear skies gets through the clouds at Markley Cove, 5.1 kWh per square metre a day. July is the sunniest month (95%) and December the cloudiest (72%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 74% | 2.3 |
| February | 77% | 3.3 |
| March | 78% | 4.6 |
| April | 84% | 6.1 |
| May | 88% | 7.3 |
| June | 93% | 8.1 |
| July | 95% | 8.0 |
| August | 94% | 7.1 |
| September | 93% | 5.8 |
| October | 88% | 4.2 |
| November | 81% | 2.8 |
| December | 72% | 2.0 |
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 Markley Cove record?
A normal year at Markley Cove brings 2,753 heating degree days, 49% fewer than the median U.S. place (5,373), and 1,188 cooling degree days, 31% more than the median (908). Five months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 4,273 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 561 | 0 |
| February | 430 | 0 |
| March | 369 | 1 |
| April | 244 | 7 |
| May | 103 | 69 |
| June | 18 | 200 |
| July | 1 | 336 |
| August | 1 | 309 |
| September | 10 | 211 |
| October | 106 | 55 |
| November | 350 | 1 |
| December | 560 | 0 |
| Year (annual) | 2,753 | 1,188 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00045360. 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 Markley Cove been warmer than normal?
2025 averaged 58.8°F, 2.0°F below the 1991-2020 normal of 60.7°F. 1 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 61.5°F | +0.8°F | 22.89 |
| 2022 | 60.0°F | −0.7°F | 14.17 |
| 2023 | 57.9°F | −2.8°F | 37.15 |
| 2024 | 60.0°F | −0.7°F | 33.00 |
| 2025 | 58.8°F | −2.0°F | 22.90 |
Over 48 complete years from 1971 to 2025, the station's annual mean temperature rose at a fitted 6.9°F per century (+0.38°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00045360; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Markley Cove's climate compare?
Markley Cove is warmer than 103 of the 219 places with their own NOAA record in California, and wetter than 164. Across the 7,247 U.S. stations with normals, its annual mean of 60.7°F is warmer than 76%.
In the Köppen classification computed from these normals, Markley Cove is Csa: temperate, dry-summer, 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.
Which places near Markley Cove share this climate record?
3 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.
- Moskowite Corner, CA136 people · 5 mi SW
- Tancred, CA77 people · 19 mi N
- Brooks, CA0 people · 17 mi N
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 Markley Cove's climate
What is the coldest month at Markley Cove?
January, with a normal high of 57°F and a normal low of 36°F. The warmest is July (95°F by day, 57°F at night).
Does it snow at Markley Cove?
Rarely: NOAA's normal is no measurable snow a year.
What is the rainiest month at Markley Cove?
February, with 5.93 in of precipitation in a normal year; the driest is July with 0.01 in.
What plant hardiness zone is Markley Cove in?
The USDA's 2023 map puts Markley Cove in zone 9b in ZIP code 95694, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches 26°F (29 years, 1991-2020): zone 9b.
How late can frost come at Markley Cove?
In half of years the last 32°F night comes after March 6; in one year in ten it comes after April 6. Waiting until April 6 leaves about a one-in-ten chance of a later frost.
Nearby and next
- California climateThe statewide normals and every place in the state
- Lake Solano, CA6 miles from this station, 62.9°F a year
- Winters, CA8 miles from this station, 62.6°F a year
- Vacaville, CA12 miles from this station, 62.1°F a year
- Fairfield, CA16 miles from this station, 61.7°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made