NOAA GHCND · LIVE

Weather on February 18

San Francisco, CA

55 Years of Data

Avg High
60°F
Avg Low
48°F
Warmest
1981
63°F avg
Coldest
2011
43°F avg

About This Date

February 18th in San Francisco, CA typically brings mild winter weather, with average highs around 60°F and lows near 48°F. Over 56 years of records, the warmest February 18th was in 1981 (63°F average), while the coldest was 2011 (43°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 41% of February 18th dates historically, with the wettest February 18th recording 4.32" of rain. The last decade has been 1.5°F cooler on this date compared to 20-30 years ago.

The last decade has been 1.5°F cooler on this date compared to 20-30 years ago.

Planning for February 18th in San Francisco, CA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.

Cooling Trend
0.6°F per decade on this date
YearHighLowAvgPrecipSnow
202652°41°46°0.94"
202562°46°54°
202464°51°58°0.56"
202363°43°53°
202266°49°57°
202162°46°54°
202067°49°58°
201955°43°49°
201853°44°49°
201755°51°53°0.3"
201661°48°54°0.36"
201562°53°58°
201461°49°55°
201351°47°49°
201258°47°52°
2011coldest47°40°43°2.24"
201057°50°54°
200959°47°53°
200856°47°51°
200758°47°52°
200648°39°44°0.23"
200565°51°58°2.11"
200458°49°53°0.41"
200361°46°53°
200254°48°51°
200158°50°54°0.23"
200063°46°54°
199957°48°53°0.53"
199860°48°54°0.23"
199765°47°56°
199666°56°61°0.74"
199569°51°60°
199452°43°47°0.81"
199359°51°55°2.06"
199260°50°55°0.74"
199168°47°57°
199053°38°45°
198956°48°52°0.2"
198867°46°56°
198766°47°56°
198666°56°61°4.32"
198571°47°59°
198458°44°51°
198357°50°54°1.52"
198264°49°56°
1981warmest74°53°63°
198064°56°60°0.38"
197955°50°53°0.89"
197864°52°58°
197773°49°61°
197654°49°51°0.03"
197557°45°51°0.03"
197453°46°50°
197360°48°54°
197264°54°59°
197155°46°51°0.33"
56 years of data from SAN FRANCISCO DWTN

San Francisco, CA Temperature Range by Month

Average monthly highs and lows. The shaded band shows the typical daily temperature range.

40°50°60°70°80°JFMAMJJASOND
Avg high Avg low

San Francisco, CA Monthly Precipitation

Average rainfall per month, in inches.

0"4.9"9.8"JFMAMJJASOND
Rain (in)

San Francisco, CA Daily Temperature Calendar

Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.

151015202531JanFebMarAprMayJunJulAugSepOctNovDec
Cooler
Hotter
20°40°60°80°100°

Best Time to Visit San Francisco, CA

Most pleasant months in San Francisco, CA: July, August.

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Pleasant (65-82°F, ≤2.5" rain) Mild Less ideal

Browse Weather History

Weather data provided by NOAA Climate Data Online. Not for critical planning.

📬 Free weekly newsletter

This week in weather history.

Five notable weather anniversaries from the week ahead — deadliest tornadoes, record temps, historic storms — every Sunday. No spam, unsubscribe anytime.

4,200+ readers · Sunday delivery