Parker Resrvoir, CA Climate: Temperature & Rain by Month
Average temperature and precipitation from NOAA NCEI 1991–2020 normals →, with a derived climate comfort score
30-year climate normals (1991-2020) from Parker Resrvoir's primary NOAA station, PARKER RESRVOIR.
The climate verdict for Parker Resrvoir
Parker Resrvoir, California is cooling-led and dry. Its 5.9 inches of annual precipitation pairs with an annual average of 74°F. It scores 80/100 for climate comfort (excellent), putting it in the top third of station-mapped location scores and exceeding 76% of them.
- 74°F
- average temperature, NOAA 1991-2020 normal
- 80/100
- comfort score, above 76% of station-mapped location scores
- 5.9"
- precipitation, annual total
- 358 days
- growing season, frost-free days
Parker Resrvoir: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00046699 · Parker Resrvoir, CA 74°F mean · 5.9" precip
TEMP-HOT · RANK-WARM · PHOTO-FINISH · PRCP-ARID · SWING-MID · COMF-TOP · LOAD-COOL · STN-1 · BOOK-FULL
- TEMP-HOT 74°F
- RANK-WARM #6,724
- PHOTO-FINISH ≈ Laughlin
- PRCP-ARID 5.9"
- SWING-MID 42°F
- COMF-TOP 80/100
- LOAD-COOL 4,511 CDD
- STN-1 USC00046699
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Laughlin, NV ( -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.
- Parker Resrvoir (this station) 74°F
- Cold Laveen, AZ 74°F
- Hot Blythe, CA 74°F
- Near Laughlin, NV 74°F
- Near Parker, AZ 74°F
Climate Living Index · Parker Resrvoir
Parker Resrvoir: 58/100 · grade C
Parker Resrvoir publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Parker Resrvoir, not an official NOAA rating. Rankings still use Comfort Score 80/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Frost-free season | 358 days/year | 100/100 · A |
| Snowfall burden | 0.0 inches/year | 90/100 · A |
| Annual temperature balance | 74.2°F · 6.7° from 67.5°F | 79/100 · B |
| Normal heat + freeze calendar | 160 calendar days | 39/100 · F |
| Precipitation balance | 5.9 in · 29.1 from 35 in | 3/100 · F |
Parker Resrvoir · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Parker Resrvoir's normals sit in a dry climate class: BWh
Annual precipitation falls well below the aridity threshold for this temperature regime, so the normals classify as hot desert (BWh). Class BWh is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: dry (arid or semi-arid), specifically hot desert.
- Köppen code
- BWh
- Group
- Dry (arid or semi-arid)
- Warmest month
- 95.1°F
- Coldest month
- 53.4°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 · cooling-led station
Where Parker Resrvoir sits across the climate record
Three NOAA fields for Parker Resrvoir's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 2% warmest
- Among 6,861 stations, Parker Resrvoir sits in the warmer third of annual means.
- Annual precipitation
- Drier than 99%
- Parker Resrvoir's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- 43rd percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Parker Resrvoir compares across U.S. station-mapped locations
Parker Resrvoir's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
80 Top 24% score exceeds 76% 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%). Below this entry.
- 80–90: 921 station-mapped locations (15%). This entry sits in this band.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Parker Resrvoir's measured station temperature trend
MethodologyAcross 49 complete annual observations from 1935 to 2025, PARKER RESRVOIR warmed at a fitted rate of 0.14°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Parker Resrvoir primary station fitted change +0.14 °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 | 66°F (19°C) | 43°F (6°C) | 54°F (12°C) | 1.0" | 0.0" | 0.9 | 0.0 |
| February | 70°F (21°C) | 47°F (8°C) | 58°F (15°C) | 0.9" | 0.0" | 0.2 | 0.0 |
| March | 77°F (25°C) | 53°F (12°C) | 65°F (18°C) | 0.8" | 0.0" | 0.0 | 2.5 |
| April | 85°F (29°C) | 59°F (15°C) | 72°F (22°C) | 0.2" | 0.0" | 0.0 | 9.7 |
| May | 94°F (34°C) | 68°F (20°C) | 81°F (27°C) | 0.1" | 0.0" | 0.0 | 23.0 |
| June | 104°F (40°C) | 77°F (25°C) | 90°F (32°C) | 0.0" | 0.0" | 0.0 | 29.1 |
| July | 107°F (42°C) | 83°F (28°C) | 95°F (35°C) | 0.4" | 0.0" | 0.0 | 30.9 |
| August | 107°F (42°C) | 82°F (28°C) | 95°F (35°C) | 0.5" | 0.0" | 0.0 | 30.8 |
| September | 101°F (38°C) | 75°F (24°C) | 88°F (31°C) | 0.6" | 0.0" | 0.0 | 28.4 |
| October | 89°F (31°C) | 63°F (17°C) | 76°F (24°C) | 0.4" | 0.0" | 0.0 | 16.8 |
| November | 75°F (24°C) | 51°F (11°C) | 63°F (17°C) | 0.3" | 0.0" | 0.0 | 1.3 |
| December | 64°F (18°C) | 43°F (6°C) | 53°F (12°C) | 0.7" | 0.0" | 0.8 | 0.0 |
The year, day by day
The year in Parker Resrvoir runs from a mild 42°F around December 21 to 108°F at the peak near July 14, and the normal low never reaches freezing on any date in the record.
When the heat sits
Normal highs reach 90°F from May 6 through October 12, covering 160 dates. The broader mild season, normal highs of 70°F or more, runs February 16 to November 26.
This counts calendar dates whose 1991–2020 normal high reaches 90°F. It is a smaller number than the 90°F+ day counts in the monthly table above, which measure how often the threshold was actually crossed in a typical year. A date can average 88°F and still exceed 90°F in half of all years.
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 42°F around December 21.
Where the wet dates fall
The likeliest wet date is February 22, when 14% of years recorded at least a hundredth of an inch. The driest is June 5 at 1%. Summed across the calendar, that is about 24 wet dates a year.
The widest day
June 15 carries the biggest normal gap between afternoon and dawn, 27°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Parker Resrvoir.
Where Parker Resrvoir Stands Nationally
Summers here run among the most heat-heavy normals calendars in the country: on about 160 days a year the normal daily high itself reaches 90°F — a count fewer than one station in ten exceeds.
Aridity defines the water calendar: about 6 inches in a normal year lands this among the driest tenth of ranked stations.
Parker Resrvoir earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall and snowfall
3.5 days with precipitation
3.8 days with precipitation
3.2 days with precipitation
1.2 days with precipitation
0.5 days with precipitation
0.2 days with precipitation
1.9 days with precipitation
2.3 days with precipitation
1.7 days with precipitation
1.8 days with precipitation
1.2 days with precipitation
3.0 days with precipitation
Parker Resrvoir's wet season runs through the cold months
December, January and February carry 46% of the year's precipitation here, while June through August contribute 16%. 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 41.7°F seasonal spread.
- Wettest month
- January, 1.0"
- Driest month
- June, 0.0"
- Wettest three months
- January, February, March (47% 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.
How Parker Resrvoir's precipitation splits across the calendar
About 24 days a year record measurable precipitation here, carrying 5.9" between them, or roughly 0.24 inches on a typical wet day. That sits in the middle band: neither the many-light-days pattern of the Pacific Northwest and the Great Lakes, nor the few-heavy-events pattern of the Gulf and the desert Southwest.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year and say nothing about the heaviest single storm on record.
Parker Resrvoir's record shows no measurable snowfall
This station measured snowfall across the 1991-2020 period and recorded none: the annual normal is 0.0 inches. That is a measured zero rather than missing data, which is a meaningful distinction here , most stations in the database simply do not report snow at all, and those pages say nothing about it.
A thirty-year normal of zero describes the typical year at this station. It is not a claim that snow has never fallen in the area.
Frost Dates & Growing Season
First Fall Freeze
December 31
50% probability date
Last Spring Freeze
January 7
50% probability date
Growing Season
358 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
1,129
Higher = more heating needed
Cooling Degree Days
4,511
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
Nationwide similar cities
Other rankable U.S. places outside CA closest to Parker Resrvoir 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 (74°F here).
- Bullhead City, AZ 74°F · 0.0°F off
- Lake Havasu City, AZ 74°F · 0.0°F off
- Winter Haven, FL 74°F · 0.0°F off
- Belle Glade, FL 74°F · 0.1°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (5.9" here), excluding temperature-peer places.
- Topaz Lake, NV 5.9" · 0.0" off
- Bunkerville, NV 5.9" · 0.0" off
- Fort Duchesne, UT 6.0" · 0.1" off
- Nuiqsut, AK 5.7" · 0.2" off
Scarce-water calendar
Where Parker Resrvoir's limited precipitation lands
cooling led · dry · mid swing
Air-conditioning demand is the clearest thermal signal here. Parker Resrvoir accumulates 4,511 cooling degree days, more than twice its 1,129 heating total; the monthly table shows when that imbalance builds rather than treating it as a year-round condition.
Heat demand sits beside limited local precipitation: Parker Resrvoir receives 5.9 inches in a normal year, inside PlainClimate's dry range. Recorded annual snowfall is negligible. Month-level precipitation is the useful check on when that small annual total arrives.
July and December mark the typical warm and cold ends of the calendar in Parker Resrvoir's middle-range seasonal profile. The measured spread is 41.7°F. The annual average is 74°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
With about 358 frost-free days, the calendar is constrained more by sustained heat than by freeze timing. This does not measure crop suitability or soil moisture; it only reports the NOAA-derived frost-free window for Parker Resrvoir.
Parker Resrvoir wettest normal
January
January concentrates the scarce annual total (5.9 inches).
Parker Resrvoir driest normal
June
June is typically driest; arid stations are defined by when water is absent, not by a four-season grid.
Questions about Parker Resrvoir's climate
How dry is Parker Resrvoir? ▼
How many days above 90°F does Parker Resrvoir get? ▼
How much energy does heating and cooling require in Parker Resrvoir? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Parker Resrvoir's primary station: PARKER RESRVOIR (USC00046699). 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 Parker Resrvoir; 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 Parker Resrvoir 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.