Alkali Lake, Oregon climate: Climate normals at a NOAA weather station
Alkali Lake's normal year runs from 19°F December nights to 88°F July afternoons, with 11.3 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 8.2°C, December lows of −7°C, July highs of 31°C, 287 mm of precipitation a year.
- NOAA stationAlkali Lake
- Station IDUSC00350118
- Location42.97°N 119.99°W
- Elevation4,332 ft (1,320 m)
On October 23, the normal high in Alkali Lake is 60°F and the normal low 27°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Alkali Lake.
- Jan 43° 20°
- Feb 45° 21°
- Mar 52° 25°
- Apr 58° 27°
- May 67° 36°
- Jun 76° 41°
- Jul 88° 48°
- Aug 87° 47°
- Sep 77° 38°
- Oct 64° 29°
- Nov 50° 23°
- Dec 41° 19°
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 Alkali Lake each month?
July is the warmest month, with normal highs of 88°F; December the coldest, with normal lows of 19°F. The most precipitation falls in May (1.57 in), the least in August (0.35 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 43°F | 20°F | 31.5°F | 1.25 | – | <1 | 27 | 9 h 20 min |
| February | 45°F | 21°F | 33.1°F | 1.00 | – | <1 | 25 | 10 h 30 min |
| March | 52°F | 25°F | 38.2°F | 1.06 | – | <1 | 26 | 11 h 50 min |
| April | 58°F | 27°F | 42.8°F | 1.13 | – | <1 | 24 | 13 h 20 min |
| May | 67°F | 36°F | 51.4°F | 1.57 | – | 1 | 13 | 14 h 40 min |
| June | 76°F | 41°F | 58.3°F | 0.97 | – | 4 | 4 | 15 h 20 min |
| July | 88°F | 48°F | 67.8°F | 0.41 | – | 16 | <1 | 15 h |
| August | 87°F | 47°F | 66.8°F | 0.35 | – | 13 | 1 | 14 h |
| September | 77°F | 38°F | 57.7°F | 0.50 | – | 2 | 8 | 12 h 30 min |
| October | 64°F | 29°F | 46.1°F | 0.93 | – | <1 | 22 | 11 h 10 min |
| November | 50°F | 23°F | 36.2°F | 0.85 | – | <1 | 25 | 9 h 50 min |
| December | 41°F | 19°F | 30.1°F | 1.27 | – | <1 | 26 | 9 h |
| Year (annual) | 62°F | 31°F | 46.7°F | 11.29 | – | 36 | 201 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 6°C | −7°C | −0.3°C | 32 mm |
| February | 7°C | −6°C | 0.6°C | 25 mm |
| March | 11°C | −4°C | 3.4°C | 27 mm |
| April | 15°C | −3°C | 6.0°C | 29 mm |
| May | 19°C | 2°C | 10.8°C | 40 mm |
| June | 24°C | 5°C | 14.6°C | 25 mm |
| July | 31°C | 9°C | 19.9°C | 10 mm |
| August | 30°C | 8°C | 19.3°C | 9 mm |
| September | 25°C | 3°C | 14.3°C | 13 mm |
| October | 18°C | −2°C | 7.8°C | 24 mm |
| November | 10°C | −5°C | 2.3°C | 22 mm |
| December | 5°C | −7°C | −1.1°C | 32 mm |
NOAA publishes no 1991-2020 snowfall normal for this station, and no record within 25 miles keeps one, so snow is left out here rather than estimated.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00350118; 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 Alkali Lake?
Normal highs sit between 65°F and 85°F in May, June and September.
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 USC00350118.
When is the last frost at Alkali Lake?
In Alkali Lake, the last spring frost (32°F) comes after June 10 in half of years and after June 27 in one year in ten; the first autumn frost comes before September 14 in half of years and before August 31 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
- June 101 year in 10 after June 27; 9 in 10 after May 21
- First autumn frost, half of years before
- September 141 year in 10 before August 31; 9 in 10 before September 25
NOAA puts the median frost-free season at 94 days, and the season without a hard freeze (28°F) at 124 days.
A hard freeze (28°F) comes after May 21 in half of springs and before September 25 in half of autumns.
Frost dates for every NOAA station in Oregon · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00350118. 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 Alkali Lake?
In a normal year in Alkali Lake, 36 days a year reach 90°F (2 of them 100°F or more) and 201 nights fall to 32°F or colder.
- Days at 90°F or more
- 36a normal year
- Days at 100°F or more
- 2a normal year
- Nights at 32°F or colder
- 201a normal year
- Days that stay below freezing
- 11high of 32°F or less
Source: NOAA NCEI 1991-2020 annual normals, station USC00350118.
How sunny is it at Alkali Lake?
Over a year 81% of the sunlight that would reach the ground under clear skies gets through the clouds at Alkali Lake, 4.7 kWh per square metre a day. July is the sunniest month (92%) and December the cloudiest (61%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 65% | 1.8 |
| February | 69% | 2.8 |
| March | 71% | 4.0 |
| April | 75% | 5.5 |
| May | 79% | 6.7 |
| June | 86% | 7.7 |
| July | 92% | 7.9 |
| August | 91% | 6.8 |
| September | 89% | 5.4 |
| October | 82% | 3.7 |
| November | 71% | 2.2 |
| December | 61% | 1.5 |
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 Alkali Lake record?
A normal year at Alkali Lake brings 6,939 heating degree days, 29% more than the median U.S. place (5,373), and 283 cooling degree days, 69% fewer than the median (908). Eight months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 1,787 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,040 | 0 |
| February | 892 | 0 |
| March | 831 | 0 |
| April | 664 | 0 |
| May | 424 | 4 |
| June | 225 | 26 |
| July | 48 | 134 |
| August | 47 | 102 |
| September | 236 | 17 |
| October | 588 | 0 |
| November | 865 | 0 |
| December | 1,080 | 0 |
| Year (annual) | 6,939 | 283 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00350118. 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 Alkali Lake been warmer than normal?
2024 averaged 49.6°F, 2.9°F above the 1991-2020 normal of 46.7°F. 2 of the 2 complete years since 2022 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2022 | 47.0°F | +0.3°F | – |
| 2024 | 49.6°F | +2.9°F | 9.71 |
Source: observed years: ACIS, station USC00350118. A year counts only with all twelve months complete.
How does Alkali Lake's climate compare?
Alkali Lake is warmer than 10 of the 105 places with their own NOAA record in Oregon, and wetter than 15. Across the 7,247 U.S. stations with normals, its annual mean of 46.7°F is warmer than 26%.
In the Köppen classification computed from these normals, Alkali Lake is BSk: cold 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 Alkali Lake's climate
What is the coldest month at Alkali Lake?
December, with a normal high of 41°F and a normal low of 19°F. The warmest is July (88°F by day, 48°F at night).
What is the rainiest month at Alkali Lake?
May, with 1.57 in of precipitation in a normal year; the driest is August with 0.35 in.
How late can frost come at Alkali Lake?
In half of years the last 32°F night comes after June 10; in one year in ten it comes after June 27. Waiting until June 27 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Oregon climateThe statewide normals and every place in the state
- Paisley, OR34 miles from this station, 47.8°F a year
- Hart Mountain Refuge, OR34 miles from this station, 45.1°F a year
- Riley (10 mi WSW), OR38 miles from this station, 44.9°F a year
- Squaw Butte-Northern Great Bas, OR39 miles from this station, 45.7°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made