Silverton, Colorado climate: Normal weather by month, frost dates and records
Silverton's normal year runs from −6°F January nights to 75°F July afternoons, with 23.9 inches of precipitation and 173 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 1.5°C, January lows of −21°C, July highs of 24°C, 608 mm of precipitation a year.
- NOAA stationSilverton
- Station IDUSC00057656
- Location37.81°N 107.66°W
- Elevation9,285 ft (2,830 m)
- Population731
On October 23, the normal high in Silverton is 52°F and the normal low 18°F, and the chance of measurable rain or snow is 28%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Silverton.
- Jan 34° -6°
- Feb 36° -3°
- Mar 43° 6°
- Apr 48° 17°
- May 58° 25°
- Jun 70° 31°
- Jul 75° 38°
- Aug 72° 37°
- Sep 66° 30°
- Oct 55° 20°
- Nov 43° 7°
- Dec 34° -5°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Silverton each month?
July is the warmest month, with normal highs of 75°F; January the coldest, with normal lows of −6°F. The most precipitation falls in August (2.83 in), the least in June (0.93 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 34°F | −6°F | 14.3°F | 2.04 | 30.8 | 9 | <1 | 31 | 9 h 50 min |
| February | 36°F | −3°F | 16.7°F | 2.10 | 28.5 | 10 | <1 | 28 | 10 h 50 min |
| March | 43°F | 6°F | 24.4°F | 2.05 | 29.4 | 10 | <1 | 31 | 11 h 50 min |
| April | 48°F | 17°F | 32.6°F | 1.74 | 18.2 | 9 | <1 | 30 | 13 h 10 min |
| May | 58°F | 25°F | 41.9°F | 1.68 | 8.2 | 10 | <1 | 27 | 14 h 10 min |
| June | 70°F | 31°F | 50.5°F | 0.93 | 0.4 | 6 | <1 | 14 | 14 h 50 min |
| July | 75°F | 38°F | 56.5°F | 2.38 | 0.0 | 13 | <1 | 2 | 14 h 30 min |
| August | 72°F | 37°F | 54.4°F | 2.83 | 0.0 | 16 | <1 | 3 | 13 h 40 min |
| September | 66°F | 30°F | 47.7°F | 2.75 | 0.5 | 11 | <1 | 18 | 12 h 30 min |
| October | 55°F | 20°F | 37.6°F | 2.13 | 7.7 | 9 | <1 | 29 | 11 h 20 min |
| November | 43°F | 7°F | 25.0°F | 1.66 | 21.5 | 8 | <1 | 30 | 10 h 10 min |
| December | 34°F | −5°F | 14.4°F | 1.63 | 27.4 | 9 | <1 | 31 | 9 h 30 min |
| Year (annual) | 53°F | 17°F | 34.7°F | 23.92 | 172.6 | 119 | <1 | 272 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 1°C | −21°C | −9.8°C | 52 mm | 78 cm |
| February | 2°C | −19°C | −8.5°C | 53 mm | 72 cm |
| March | 6°C | −14°C | −4.2°C | 52 mm | 75 cm |
| April | 9°C | −8°C | 0.3°C | 44 mm | 46 cm |
| May | 15°C | −4°C | 5.5°C | 43 mm | 21 cm |
| June | 21°C | −1°C | 10.3°C | 24 mm | 1 cm |
| July | 24°C | 3°C | 13.6°C | 60 mm | 0 cm |
| August | 22°C | 3°C | 12.4°C | 72 mm | 0 cm |
| September | 19°C | −1°C | 8.7°C | 70 mm | 1 cm |
| October | 13°C | −7°C | 3.1°C | 54 mm | 20 cm |
| November | 6°C | −14°C | −3.9°C | 42 mm | 55 cm |
| December | 1°C | −20°C | −9.8°C | 41 mm | 70 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00057656; 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.
When is the best weather to visit Silverton?
Normal highs sit between 65°F and 85°F in June, July, August and September. Of those, June has the fewest days with rain (6).
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 USC00057656.
How hot and how cold does it get in Silverton?
In a normal year in Silverton, a 90°F day is rare, 272 nights fall to 32°F or colder and 119 days bring measurable precipitation.
- Days at 90°F or more
- fewer than 1a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 272a normal year
- Days that stay below freezing
- 45high of 32°F or less
- Days with 0.01 inch of precipitation
- 119a normal year
- Days with 1 inch of snow or more
- 47a normal year
The highest temperature in this station's record (since 1904) is 96°F, on June 26, 1929; the lowest is −39°F, on February 1, 1985.
The wettest calendar year on that record is 1911, with 44.78 in; the snowiest season is 1951–52, with 299.9 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00057656; records: ACIS (NOAA Regional Climate Centers), station USC00057656. Records use complete months only; a month missing more than three days is left out.
How sunny is Silverton?
Over a year 78% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Silverton, 5.0 kWh per square metre a day. June is the sunniest month (85%) and December the cloudiest (75%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 79% | 2.9 |
| February | 76% | 3.8 |
| March | 78% | 5.1 |
| April | 75% | 6.1 |
| May | 76% | 6.8 |
| June | 85% | 7.8 |
| July | 76% | 6.7 |
| August | 77% | 6.0 |
| September | 80% | 5.4 |
| October | 81% | 4.2 |
| November | 79% | 3.1 |
| December | 75% | 2.5 |
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 much heating and cooling does Silverton need?
A normal year in Silverton brings 11,035 heating degree days, 2.1 times the median U.S. place (5,373), and 0 cooling degree days, 100% fewer than the median (908). Eleven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 447 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,573 | 0 |
| February | 1,351 | 0 |
| March | 1,259 | 0 |
| April | 972 | 0 |
| May | 716 | 0 |
| June | 435 | 0 |
| July | 264 | 0 |
| August | 327 | 0 |
| September | 521 | 0 |
| October | 851 | 0 |
| November | 1,200 | 0 |
| December | 1,567 | 0 |
| Year (annual) | 11,035 | 0 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00057656. 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.
Has Silverton been warmer than normal lately?
2025 averaged 37.7°F, 3.0°F above the 1991-2020 normal of 34.7°F. 2 of the 3 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 36.9°F | +2.2°F | 22.62 | 164.8 |
| 2023 | 34.7°F | at normal | 20.19 | 216.8 |
| 2025 | 37.7°F | +3.0°F | 20.28 | 105.4 |
Over 77 complete years from 1905 to 2025, the station's annual mean temperature rose at a fitted 3.0°F per century (+0.17°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00057656; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Silverton's climate compare?
Silverton is warmer than 2 of the other 124 places with their own NOAA record in Colorado, and wetter than 114. Across the 7,247 U.S. stations with normals, its annual mean of 34.7°F is warmer than 1%.
In the Köppen classification computed from these normals, Silverton is Dfc: continental, no dry season, cool 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.
Questions about Silverton's climate
What is the coldest month in Silverton?
January, with a normal high of 34°F and a normal low of −6°F. The warmest is July (75°F by day, 38°F at night).
Does it snow in Silverton?
Yes: 173 inches in a normal year, falling on 68 days with 0.1 inch or more, the most in January (30.8 inches).
What is the rainiest month in Silverton?
August, with 2.83 in of precipitation in a normal year; the driest is June with 0.93 in.
What plant hardiness zone is Silverton in?
The USDA's 2023 map puts Silverton in zone 5a in ZIP code 81433, the nearest ZIP area. By the same method at Silverton's NOAA station, the coldest night of a typical year reaches −24°F (20 years, 1991-2020): zone 4b.
Nearby and next
- Colorado climateThe statewide normals and every place in the state
- Telluride, CO15 miles from this station, 38.1°F a year
- Ouray, CO15 miles from this station, 45.1°F a year
- Rio Grande Reservoir, CO22 miles from this station, 36.9°F a year
- Ridgway, CO24 miles from this station, 44.1°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made