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Signal Mountain, TN weather and climate

Hamilton County, TN · population 8,861 · about 1,775 ft elevation

Everything below is a 30 year average for 1991-2020, computed from daily climate history at Signal Mountain's own coordinates.

The year at a glance

Sunny days
193
clear or partly cloudy, per year
Precipitation
56 in
per year
Wet days
135
rain or snow per year
Snowfall
4 in
per year
Hot days
24
above 90 °F
Freezing nights
69
at or below 32 °F
Humidity
74%
average relative
Average temperature
59 °F
year round

Monthly temperatures

Average daily high and low for each month, in °F.

Daily highDaily low
406080JanMarMayJulSepNovDaily high, Jan: 48 °FDaily high, Feb: 52 °FDaily high, Mar: 60 °FDaily high, Apr: 70 °FDaily high, May: 77 °FDaily high, Jun: 84 °FDaily high, Jul: 87 °FDaily high, Aug: 86 °FDaily high, Sep: 81 °FDaily high, Oct: 70 °FDaily high, Nov: 59 °FDaily high, Dec: 50 °FDaily low, Jan: 30 °FDaily low, Feb: 33 °FDaily low, Mar: 39 °FDaily low, Apr: 48 °FDaily low, May: 57 °FDaily low, Jun: 64 °FDaily low, Jul: 68 °FDaily low, Aug: 67 °FDaily low, Sep: 61 °FDaily low, Oct: 50 °FDaily low, Nov: 39 °FDaily low, Dec: 33 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high485260707784878681705950
Daily low303339485764686761503933

Monthly precipitation

Total rain plus melted snow for each month, in inches.

0.02.04.06.0JanMarMayJulSepNovSignal Mountain, Jan: 5.1 inSignal Mountain, Feb: 4.8 inSignal Mountain, Mar: 5.7 inSignal Mountain, Apr: 5.2 inSignal Mountain, May: 4.4 inSignal Mountain, Jun: 4.1 inSignal Mountain, Jul: 5.0 inSignal Mountain, Aug: 3.7 inSignal Mountain, Sep: 4.2 inSignal Mountain, Oct: 3.5 inSignal Mountain, Nov: 4.6 inSignal Mountain, Dec: 5.5 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Signal Mountain5.14.85.75.24.44.15.03.74.23.54.65.5

Monthly sunny days

Days each month with clear or partly cloudy skies.

01020JanMarMayJulSepNovSignal Mountain, Jan: 14 daysSignal Mountain, Feb: 12 daysSignal Mountain, Mar: 15 daysSignal Mountain, Apr: 16 daysSignal Mountain, May: 16 daysSignal Mountain, Jun: 16 daysSignal Mountain, Jul: 16 daysSignal Mountain, Aug: 18 daysSignal Mountain, Sep: 18 daysSignal Mountain, Oct: 20 daysSignal Mountain, Nov: 17 daysSignal Mountain, Dec: 14 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Signal Mountain141215161616161818201714

Compare Signal Mountain with another city

Nearby cities and popular picks. Any two cities can be compared from the home page.

See weather for every covered Tennessee city

About this data

Figures are 30 year averages for 1991-2020. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).