Siler City, NC Climate: Temperature & Rain by Month
Temperature and precipitation from NOAA NCEI 1991–2020 normals →, plus PlainClimate's derived comfort score
30-year climate normals (1991-2020) from Siler City's primary NOAA station, SILER CITY 2 N.
The climate verdict for Siler City
Water is the standout signal in Siler City, North Carolina: 45.9 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 59°F. It scores 83/100 for climate comfort (excellent), putting it in the top third of station-mapped location scores and exceeding 81% of them.
- 59°F
- average temperature, NOAA 1991-2020 normal
- 83/100
- comfort score, above 81% of station-mapped location scores
- 45.9"
- annual precipitation · 2" snow
- 218 days
- frost-free growing season
Siler City: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00317924 · Siler City, NC 59°F mean · 45.9" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-MID · SWING-MID · COMF-TOP · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-MILD 59°F
- RANK-UPPER #5,009
- PHOTO-FINISH ≈ Winston Salem R…
- PRCP-MID 45.9"
- SWING-MID 39°F
- COMF-TOP 83/100
- LOAD-HEAT 3,504 HDD
- STN-1 USC00317924
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Winston Salem Rynlds, NC (+ 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 NC station list.
- Hot Centerville Wat…, TN 60°F
- Near Winston Salem R…, NC 60°F
- Near Owens Cross Roa…, AL 60°F
- Siler City (this station) 59°F
- Cold Salisbury, NC 59°F
Climate Living Index · Siler City
Siler City: 77/100 · grade B
Siler City publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Siler City, not an official NOAA rating. Rankings still use Comfort Score 83/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 55 calendar days | 90/100 · A |
| Snowfall burden | 1.5 inches/year | 79/100 · B |
| Frost-free season | 218 days/year | 76/100 · B |
| Annual temperature balance | 59.4°F · 8.1° from 67.5°F | 74/100 · B |
| Precipitation balance | 45.9 in · 10.9 from 35 in | 62/100 · C |
Siler City · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Siler City is a temperate Köppen climate: Cfa
Coldest-month mean 40.0°F and warmest-month mean 78.6°F place this station in temperate, no dry season, hot summer climates (Cfa). Class Cfa is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: temperate, specifically temperate, no dry season, hot summer.
- Köppen code
- Cfa
- Group
- Temperate
- Warmest month
- 78.6°F
- Coldest month
- 40.0°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 Siler City sits across the climate record
Three NOAA fields for Siler City's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 27% warmest
- Among 6,861 stations, Siler City sits in the warmer third of annual means.
- Annual precipitation
- Top 30% wettest
- Siler City's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 70%
- Warmest-to-coldest month gap for Siler City is compact versus 6,861 complete station-years.
How Siler City compares across U.S. station-mapped locations
Siler City's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
83 Top 19% score exceeds 81% 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
Siler City's measured station temperature trend
MethodologyAcross 73 complete annual observations from 1917 to 2016, SILER CITY 2 N warmed at a fitted rate of 0.07°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Siler City primary station fitted change +0.07 °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 | 50°F (10°C) | 30°F (-1°C) | 40°F (4°C) | 3.9" | 0.4" | 20.0 | 0.0 |
| February | 54°F (12°C) | 32°F (0°C) | 43°F (6°C) | 3.2" | 0.1" | 15.7 | 0.0 |
| March | 62°F (17°C) | 39°F (4°C) | 50°F (10°C) | 4.2" | 0.6" | 9.4 | 0.0 |
| April | 71°F (22°C) | 47°F (8°C) | 59°F (15°C) | 3.9" | 0.0" | 1.2 | 0.3 |
| May | 78°F (25°C) | 56°F (13°C) | 67°F (19°C) | 3.6" | 0.0" | 0.0 | 1.1 |
| June | 85°F (29°C) | 65°F (18°C) | 75°F (24°C) | 3.7" | 0.0" | 0.0 | 7.6 |
| July | 89°F (31°C) | 69°F (20°C) | 79°F (26°C) | 3.8" | 0.0" | 0.0 | 13.4 |
| August | 87°F (30°C) | 67°F (19°C) | 77°F (25°C) | 4.0" | 0.0" | 0.0 | 9.4 |
| September | 81°F (27°C) | 61°F (16°C) | 71°F (22°C) | 5.0" | 0.0" | 0.0 | 2.7 |
| October | 71°F (22°C) | 48°F (9°C) | 60°F (15°C) | 3.4" | 0.0" | 0.5 | 0.2 |
| November | 61°F (16°C) | 38°F (3°C) | 50°F (10°C) | 3.5" | 0.0" | 9.0 | 0.0 |
| December | 53°F (12°C) | 33°F (1°C) | 43°F (6°C) | 3.6" | 0.4" | 16.7 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 89°F around July 8, short of 90°F on every date, while 55 dates carry a normal low at or below freezing, the coldest 29°F near January 18.
The freezing stretch
The normal low stays at or below 32°F into February 15, then returns to freezing around December 23, covering 55 dates in all.
Derived from the normal daily minimum. This is a different measure from the 50%-probability frost dates shown elsewhere on this page, which come from NOAA’s frost product.
Where the wet dates fall
The likeliest wet date is July 23, when 35% of years recorded at least a hundredth of an inch. The driest is October 23 at 26%. Summed across the calendar, that is about 114 wet dates a year.
The widest day
April 10 carries the biggest normal gap between afternoon and dawn, 25°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Siler City.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 0.4"
10.2 days with precipitation
Snow: 0.1"
9.5 days with precipitation
Snow: 0.6"
10.6 days with precipitation
9.6 days with precipitation
9.7 days with precipitation
9.9 days with precipitation
10.9 days with precipitation
10.0 days with precipitation
8.6 days with precipitation
7.8 days with precipitation
8.3 days with precipitation
Snow: 0.4"
9.9 days with precipitation
Siler City spreads its precipitation across the year
Neither half of the year dominates here: June through August take 25% of the annual total and December through February 23%, with neither reaching the 35% that would mark a distinct wet season. Siler City has no dry season to plan around, though it does carry a 38.6°F seasonal spread.
The gap between the wettest and driest month still matters: September averages 5.0" and February 3.2". The three wettest months together take 29% of the year, against the 25% a perfectly flat distribution would give them.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. "Spread across the year" means neither the June-August nor the December-February share reaches 35%; it describes an average year, not the variability of any single one.
When it rains in Siler City, it arrives in quantity
45.9" of precipitation falls across only about 115 wet days here, averaging 0.40 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 115 a year, 32% of all days
- Average depth per wet day
- 0.40 inches
- Most wet days
- July, about 11
- Fewest wet days
- October, about 8
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.
Snow reaches Siler City, but rarely amounts to much
The normals record 1.5 inches of snow a year here, most likely in March. That is a real but marginal amount: enough that snow is part of the local record, not enough to define the winter.
A figure in this range usually reflects a handful of events that melt quickly rather than a season of accumulation; about 0 days a year record any measurable snow at all.
NOAA 1991-2020 normals. An average across thirty years can smooth away a single heavy winter, so a small annual figure does not mean a significant snowfall is impossible.
Frost Dates & Growing Season
First Fall Freeze
November 4
50% probability date
Last Spring Freeze
March 31
50% probability date
Growing Season
218 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
3,504
Higher = more heating needed
Cooling Degree Days
1,498
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside NC closest to Siler City 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 (59°F here).
- Levelland, TX 59°F · 0.0°F off
- Morton, TX 59°F · 0.0°F off
- Red Rock, OK 59°F · 0.0°F off
- Redwood City, CA 59°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (45.9" here), excluding temperature-peer places.
- Salem, IL 45.9" · 0.0" off
- Colfax, CA 45.9" · 0.0" off
- Chester, SC 45.9" · 0.0" off
- Claremore, OK 45.9" · 0.0" off
Data-derived climate profile
How Siler City's climate pattern fits together
heating led · wet · mid swing
Siler City's energy balance leans toward cold weather: 3,504 annual heating degree days against 1,498 for cooling. Its 38.6°F seasonal range still makes the monthly rows more useful than the annual average alone.
Siler City's frost-free season lasts about 218 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
July and January mark the typical warm and cold ends of the calendar in Siler City's middle-range seasonal profile. The measured spread is 38.6°F. The annual average is 59°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Alongside its heating load, Siler City carries 45.9 inches of precipitation in a normal year, inside PlainClimate's wet range. Annual snowfall totals 1.5 inches. That distinction matters because a wet annual total can arrive as rain, snow, or a mixture at different times.
These labels group NOAA 1991-2020 normals from Siler City's primary station, so the winter figures are a thirty-year average and not a floor: a single hard season can run well below them. Treat each band as a descriptive range for Siler City, not an official NOAA class or a year-ahead forecast.
Questions about Siler City's climate
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Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Siler City's primary station: SILER CITY 2 N (USC00317924). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The 2024 Census Gazetteer identifies the exact name-and-state match as an incorporated place (GEOID 3761860). Match rule for Siler City: exact normalized name + state only, no fuzzy expansion, so nearby differently spelled facilities stay unmatched.
On this page every temperature, precipitation, and derived score for Siler City 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.