Palomar Mtn Obsy, CA Climate: Temperature & Rain by Month
Explore NOAA NCEI's 1991–2020 climate normals → and a clearly labeled PlainClimate comfort calculation
30-year climate normals (1991-2020) from Palomar Mtn Obsy's primary NOAA station, PALOMAR MTN OBSY.
The climate verdict for Palomar Mtn Obsy
Palomar Mtn Obsy, California has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 57°F. Its climate comfort score of 73/100 (good) lands mid-pack nationally, exceeding 66% of station-mapped location scores.
- 57°F
- annual average temperature (NOAA normal)
- 73/100
- comfort score, above 66% of station-mapped location scores
- 30.4"
- annual precipitation · 26" snow
- 203 days
- frost-free growing season
Palomar Mtn Obsy: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00046657 · Palomar Mtn Obsy, CA 57°F mean · 30.4" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-MID · SWING-MID · COMF-MID · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-MILD 57°F
- RANK-UPPER #4,597
- PHOTO-FINISH ≈ Payson
- PRCP-MID 30.4"
- SWING-MID 31°F
- COMF-MID 73/100
- LOAD-HEAT 3,835 HDD
- STN-1 USC00046657
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Payson, AZ ( -0.1 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every CA station list.
- Palomar Mtn Obsy (this station) 57°F
- Cold Andrews, NC 57°F
- Hot Helen, GA 57°F
- Near Payson, AZ 57°F
- Near Asheville Rgnl, NC 57°F
Climate Living Index · Palomar Mtn Obsy
Palomar Mtn Obsy: 77/100 · grade B
Palomar Mtn Obsy publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Palomar Mtn Obsy, not an official NOAA rating. Rankings still use Comfort Score 73/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 0 calendar days | 100/100 · A |
| Precipitation balance | 30.4 in · 4.6 from 35 in | 84/100 · B |
| Annual temperature balance | 57.1°F · 10.4° from 67.5°F | 67/100 · C |
| Frost-free season | 203 days/year | 66/100 · C |
| Snowfall burden | 26.2 inches/year | 42/100 · D |
Palomar Mtn Obsy · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Palomar Mtn Obsy is a temperate Köppen climate: Csa
Coldest-month mean 43.6°F and warmest-month mean 74.5°F place this station in temperate, dry-summer, hot summer climates (Csa). Class Csa is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: temperate, specifically temperate, dry-summer, hot summer.
- Köppen code
- Csa
- Group
- Temperate
- Warmest month
- 74.5°F
- Coldest month
- 43.6°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · heating-led station
Where Palomar Mtn Obsy sits across the climate record
Three NOAA fields for Palomar Mtn Obsy's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 67th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- 40th percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- Narrower than 89%
- Warmest-to-coldest month gap for Palomar Mtn Obsy is compact versus 6,861 complete station-years.
How Palomar Mtn Obsy compares across U.S. station-mapped locations
Palomar Mtn Obsy's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
73 Top 34% score exceeds 66% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). Below this entry.
- 50–60: 1,329 station-mapped locations (21%). Below this entry.
- 60–70: 1,236 station-mapped locations (20%). Below this entry.
- 70–80: 650 station-mapped locations (11%). This entry sits in this band.
- 80–90: 921 station-mapped locations (15%). Above this entry.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Palomar Mtn Obsy's measured station temperature trend
MethodologyAcross 51 complete annual observations from 1943 to 2025, PALOMAR MTN OBSY warmed at a fitted rate of 0.25°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Palomar Mtn Obsy primary station fitted change +0.25 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 51°F (11°C) | 37°F (3°C) | 44°F (7°C) | 5.9" | 6.2" | 9.0 | 0.0 |
| February | 51°F (11°C) | 36°F (2°C) | 44°F (6°C) | 7.3" | 10.6" | 10.4 | 0.0 |
| March | 56°F (13°C) | 39°F (4°C) | 47°F (8°C) | 4.6" | 3.1" | 7.8 | 0.0 |
| April | 61°F (16°C) | 42°F (5°C) | 52°F (11°C) | 2.0" | 3.5" | 5.5 | 0.0 |
| May | 69°F (21°C) | 48°F (9°C) | 59°F (15°C) | 0.9" | 0.0" | 1.5 | 0.1 |
| June | 79°F (26°C) | 57°F (14°C) | 68°F (20°C) | 0.2" | 0.0" | 0.1 | 1.1 |
| July | 84°F (29°C) | 64°F (18°C) | 74°F (23°C) | 0.3" | 0.0" | 0.0 | 4.7 |
| August | 84°F (29°C) | 65°F (18°C) | 75°F (24°C) | 0.7" | 0.0" | 0.0 | 3.8 |
| September | 79°F (26°C) | 60°F (15°C) | 69°F (21°C) | 0.5" | 0.0" | 0.0 | 0.5 |
| October | 69°F (21°C) | 51°F (10°C) | 60°F (16°C) | 1.2" | 0.0" | 0.5 | 0.0 |
| November | 58°F (15°C) | 43°F (6°C) | 50°F (10°C) | 2.3" | 0.4" | 4.3 | 0.0 |
| December | 51°F (10°C) | 37°F (3°C) | 44°F (7°C) | 4.6" | 2.4" | 10.0 | 0.0 |
The year, day by day
The calendar barely moves in Palomar Mtn Obsy: no date carries a normal high of 90°F or a normal low at freezing. The year runs between 36°F near February 9 and 85°F near July 23.
No freezing date
Not one calendar date in the 1991–2020 record carries a normal low at or below 32°F. The coldest normal low of the year is 36°F around February 9.
Where the wet dates fall
The likeliest wet date is February 18, when 26% of years recorded at least a hundredth of an inch. The driest is June 18 at 1%. Summed across the calendar, that is about 42 wet dates a year.
The widest day
June 9 carries the biggest normal gap between afternoon and dawn, 22°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Palomar Mtn Obsy.
Where Palomar Mtn Obsy Stands Nationally
Days and nights track unusually close together; the widest normal swing, about 22°F, is narrower than most stations record.
Palomar Mtn Obsy earns one nationally notable standing (outer quintile) against 6,860 NOAA 1991–2020 normals stations, middle-of-the-pack metrics stay silent here.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 6.2"
6.8 days with precipitation
Snow: 10.6"
7.5 days with precipitation
Snow: 3.1"
6.1 days with precipitation
Snow: 3.5"
3.8 days with precipitation
2.1 days with precipitation
0.4 days with precipitation
1.1 days with precipitation
1.3 days with precipitation
1.3 days with precipitation
2.2 days with precipitation
Snow: 0.4"
3.4 days with precipitation
Snow: 2.4"
6.0 days with precipitation
Palomar Mtn Obsy's wet season runs through the cold months
December, January and February carry 59% of the year's precipitation here, while June through August contribute 4%. That is the cool-season-dominant pattern of the West Coast and the higher inland West, where storm tracks swing south in winter and summer turns dry; the thermometer meanwhile shows a 30.9°F seasonal spread.
- Wettest month
- February, 7.3"
- Driest month
- June, 0.2"
- Wettest three months
- February, January, March (59% of the year)
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A cool-season label means the December-February share reaches 35%. Where snow falls, the monthly figures above report liquid-equivalent precipitation, so a wet winter month is not necessarily a rainy one.
When it rains in Palomar Mtn Obsy, it arrives in quantity
30.4" of precipitation falls across only about 42 wet days here, averaging 0.72 inches each. Fewer days carry more water: the year's total is delivered in comparatively heavy events rather than persistent damp.
- Days with measurable precipitation
- about 42 a year, 12% of all days
- Average depth per wet day
- 0.72 inches
- Most wet days
- February, about 8
- Fewest wet days
- June, about 0
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, and a per-day average is not a forecast of any individual storm.
Winter brings real snow to Palomar Mtn Obsy
Palomar Mtn Obsy averages 26.2 inches of snowfall a year, with February the snowiest month on the normals, spread across roughly 7 days that record measurable snow. That is depth accumulating on the ground, which is why it can exceed the annual precipitation figure: precipitation counts the liquid the snow melts down to, and fresh snow is mostly air.
- Annual snowfall: 26.2 inches of depth.
- Days recording measurable snow: about 7 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 9% of the year's precipitation.
NOAA 1991-2020 normals. The ten-to-one ratio is a convention, not a measurement: real ratios vary with temperature, so treat the share as an order of magnitude rather than an exact split.
Frost Dates & Growing Season
First Fall Freeze
November 18
50% probability date
Last Spring Freeze
April 29
50% probability date
Growing Season
203 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
3,835
Higher = more heating needed
Cooling Degree Days
981
Higher = more cooling needed
Warmest Month
August
Coldest Month
February
Nationwide similar cities
Other rankable U.S. places outside CA closest to Palomar Mtn Obsy on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (57°F here).
- Cleveland, GA 57°F · 0.0°F off
- Dover, DE 57°F · 0.0°F off
- Henderson, KY 57°F · 0.0°F off
- Laurel, MD 57°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (30.4" here), excluding temperature-peer places.
- Florence, WI 30.4" · 0.0" off
- Fremont, NE 30.4" · 0.0" off
- Goldthwaite, TX 30.4" · 0.0" off
- Aurora, NE 30.4" · 0.0" off
Snow and freeze rhythm
When cold and snow define Palomar Mtn Obsy
heating led · moderate · mid swing
Palomar Mtn Obsy's energy balance leans toward cold weather: 3,835 annual heating degree days against 981 for cooling. Its 30.9°F seasonal range still makes the monthly rows more useful than the annual average alone.
Palomar Mtn Obsy's frost-free season lasts about 203 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
-
1. Palomar Mtn Obsy coldest normal
February
The coldest month still averages 44°F (6°C), above freezing, so this calendar has no hard winter.
-
2. Palomar Mtn Obsy typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Palomar Mtn Obsy snow peak
February
Palomar Mtn Obsy averages 26.2 inches of snow a year, with February the snowiest month on the normals.
Questions about Palomar Mtn Obsy's climate
How much snow does Palomar Mtn Obsy get? ▼
How much energy does heating and cooling require in Palomar Mtn Obsy? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Palomar Mtn Obsy's primary station: PALOMAR MTN OBSY (USC00046657). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for Palomar Mtn Obsy; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for Palomar Mtn Obsy comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.