Twin Spring Fallini, Nevada climate: Climate normals at a NOAA weather station
Twin Spring Fallini's normal year runs from 14°F December nights to 94°F July afternoons, with 4.9 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 10.4°C, December lows of −10°C, July highs of 35°C, 125 mm of precipitation a year.
- NOAA stationTwin Spring Fallini
- Station IDUSC00268443
- Location38.20°N 116.18°W
- Elevation5,300 ft (1,615 m)
On October 24, the normal high in Twin Spring Fallini is 66°F and the normal low 29°F, and the chance of measurable rain or snow is 8%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Twin Spring Fallini.
- Jan 44° 15°
- Feb 50° 22°
- Mar 59° 27°
- Apr 66° 33°
- May 76° 41°
- Jun 86° 49°
- Jul 94° 55°
- Aug 91° 52°
- Sep 82° 42°
- Oct 70° 32°
- Nov 54° 20°
- Dec 43° 14°
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 Twin Spring Fallini each month?
July is the warmest month, with normal highs of 94°F; December the coldest, with normal lows of 14°F. The most precipitation falls in May (0.61 in), the least in June (0.20 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 44°F | 15°F | 29.1°F | 0.41 | 3 | <1 | 30 | 9 h 50 min |
| February | 50°F | 22°F | 35.9°F | 0.44 | 5 | <1 | 25 | 10 h 50 min |
| March | 59°F | 27°F | 43.3°F | 0.41 | 4 | <1 | 24 | 11 h 50 min |
| April | 66°F | 33°F | 49.7°F | 0.57 | 4 | <1 | 17 | 13 h 10 min |
| May | 76°F | 41°F | 58.5°F | 0.61 | 4 | 2 | 4 | 14 h 10 min |
| June | 86°F | 49°F | 67.6°F | 0.20 | 2 | 11 | 1 | 14 h 50 min |
| July | 94°F | 55°F | 74.5°F | 0.54 | 3 | 22 | <1 | 14 h 40 min |
| August | 91°F | 52°F | 71.9°F | 0.41 | 3 | 19 | <1 | 13 h 40 min |
| September | 82°F | 42°F | 62.3°F | 0.35 | 3 | 2 | 3 | 12 h 30 min |
| October | 70°F | 32°F | 50.7°F | 0.34 | 2 | <1 | 18 | 11 h 20 min |
| November | 54°F | 20°F | 37.3°F | 0.39 | 2 | <1 | 28 | 10 h 10 min |
| December | 43°F | 14°F | 28.6°F | 0.26 | 3 | <1 | 31 | 9 h 30 min |
| Year (annual) | 68°F | 34°F | 50.8°F | 4.93 | 38 | 56 | 181 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 6°C | −10°C | −1.6°C | 10 mm |
| February | 10°C | −5°C | 2.2°C | 11 mm |
| March | 15°C | −3°C | 6.3°C | 10 mm |
| April | 19°C | 1°C | 9.8°C | 14 mm |
| May | 24°C | 5°C | 14.7°C | 15 mm |
| June | 30°C | 9°C | 19.8°C | 5 mm |
| July | 35°C | 13°C | 23.6°C | 14 mm |
| August | 33°C | 11°C | 22.2°C | 10 mm |
| September | 28°C | 6°C | 16.8°C | 9 mm |
| October | 21°C | 0°C | 10.4°C | 9 mm |
| November | 12°C | −7°C | 2.9°C | 10 mm |
| December | 6°C | −10°C | −1.9°C | 7 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 USC00268443; 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 Twin Spring Fallini?
Normal highs sit between 65°F and 85°F in April, May, September and October. 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 USC00268443.
When is the last frost at Twin Spring Fallini?
In Twin Spring Fallini, the last spring frost (32°F) comes after May 10 in half of years and after June 2 in one year in ten; the first autumn frost comes before September 30 in half of years and before September 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
- May 101 year in 10 after June 2; 9 in 10 after April 24
- First autumn frost, half of years before
- September 301 year in 10 before September 15; 9 in 10 before October 12
NOAA puts the median frost-free season at 141 days, and the season without a hard freeze (28°F) at 169 days.
A hard freeze (28°F) comes after April 25 in half of springs and before October 11 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Twin Spring Fallini in zone 6b in ZIP code 89049, the nearest ZIP area.
Frost dates for every NOAA station in Nevada · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00268443; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. 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 Twin Spring Fallini?
In a normal year in Twin Spring Fallini, 56 days a year reach 90°F (4 of them 100°F or more), 181 nights fall to 32°F or colder and 38 days bring measurable precipitation.
- Days at 90°F or more
- 56a normal year
- Days at 100°F or more
- 4a normal year
- Nights at 32°F or colder
- 181a normal year
- Days that stay below freezing
- 9high of 32°F or less
- Days with 0.01 inch of precipitation
- 38a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00268443.
How sunny is it at Twin Spring Fallini?
Over a year 86% of the sunlight that would reach the ground under clear skies gets through the clouds at Twin Spring Fallini, 5.3 kWh per square metre a day. June is the sunniest month (92%) and December the cloudiest (76%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 79% | 2.7 |
| February | 78% | 3.6 |
| March | 81% | 5.0 |
| April | 83% | 6.4 |
| May | 84% | 7.3 |
| June | 92% | 8.3 |
| July | 88% | 7.6 |
| August | 91% | 7.1 |
| September | 91% | 6.0 |
| October | 89% | 4.5 |
| November | 84% | 3.1 |
| December | 76% | 2.3 |
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 Twin Spring Fallini record?
A normal year at Twin Spring Fallini brings 5,861 heating degree days, 9% more than the median U.S. place (5,373), and 701 cooling degree days, 23% fewer than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,818 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,113 | 0 |
| February | 815 | 0 |
| March | 673 | 0 |
| April | 459 | 0 |
| May | 224 | 22 |
| June | 53 | 131 |
| July | 1 | 295 |
| August | 7 | 220 |
| September | 114 | 32 |
| October | 444 | 0 |
| November | 831 | 0 |
| December | 1,128 | 0 |
| Year (annual) | 5,861 | 701 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00268443. 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.
How does Twin Spring Fallini's climate compare?
Twin Spring Fallini is warmer than 23 of the 55 places with their own NOAA record in Nevada, and wetter than 7. Across the 7,247 U.S. stations with normals, its annual mean of 50.8°F is warmer than 44%.
In the Köppen classification computed from these normals, Twin Spring Fallini is BWk: cold desert. 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 Twin Spring Fallini's climate
What is the coldest month at Twin Spring Fallini?
December, with a normal high of 43°F and a normal low of 14°F. The warmest is July (94°F by day, 55°F at night).
What is the rainiest month at Twin Spring Fallini?
May, with 0.61 in of precipitation in a normal year; the driest is June with 0.20 in.
What plant hardiness zone is Twin Spring Fallini in?
The USDA's 2023 map puts Twin Spring Fallini in zone 6b in ZIP code 89049, the nearest ZIP area.
How late can frost come at Twin Spring Fallini?
In half of years the last 32°F night comes after May 10; in one year in ten it comes after June 2. Waiting until June 2 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Nevada climateThe statewide normals and every place in the state
- Blue Eagle Ranch - Currant (12 mi SSW), NV40 miles from this station, 52.6°F a year
- Rachel, NV45 miles from this station, 52.5°F a year
- Tonopah, NV51 miles from this station, 52.9°F a year
- Snowball Ranch, NV58 miles from this station, 45.4°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made