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Conditions for San Francisco, CA

(San Francisco County)

Get notified when conditions change
Precipitation (Total)
Temperature (Maximum)
Drought Indicators

Indicators are variables used to describe drought conditions (e.g., precipitation, temperature, streamflow, groundwater and reservoir levels, soil moisture, and snowpack). In order to get a complete picture of drought conditions, several drought indicators should be examined.

Legend
                     
Exceptional Wet Exceptional Drought

Short-Term Drought Indicator Blend

 

These experimental drought blends integrate several key drought monitoring products and indices into a single short-term or long-term product, based on the methodology developed at the NOAA Climate Prediction Center. The blends are created using the Climate Engine tool, and apply the CPC weighting ratios to the high-resolution gridMET gridded research dataset.

The short-term blend combines PDSI, Z-Index, 1-month SPI, and 3-month SPI to estimate the overall short-term drought. This product is an example of current NIDIS-funded research

The data are updated every 5 days, with a delay of 4 to 5 days to allow for data collection and quality control. Learn more.

Click here for more information about this legend

Dry Conditions (Percentile Categories)
Value Map Hex Color
D4 (0-2) #730000
D3 (2-5) #E60000
D2 (5-10) #FFAA00
D1 (10-20) #FCD37F
D0 (20-30) #FFFF00
(30-70) #ffffff
Wet Conditions (Percentile Categories)
Value Map Hex Color
W0 (70-80) #AAFF55
W1 (80-90) #01FFFF
W2 (90-95) #00AAFF
W3 (95-98) #0000FF
W4 (98-100) #0000AA
Experimental

Long-Term Drought Indicator Blend

 

These experimental drought blends integrate several key drought monitoring products and indices into a single short-term or long-term product, based on the methodology developed at the NOAA Climate Prediction Center. The blends are created using the Climate Engine tool, and apply the CPC weighting ratios to the high-resolution gridMET gridded research dataset.

The long-term blend combines PDSI, Z-Index, and 6-month, 1-year, 2-year, and 5-year SPI to estimate the overall long-term drought. This product is an example of current NIDIS-funded research

The data are updated every 5 days, with a delay of 4 to 5 days to allow for data collection and quality control. Learn more.

Click here for more information about this legend

Dry Conditions (Percentile Categories)
Value Map Hex Color
D4 (0-2) #730000
D3 (2-5) #E60000
D2 (5-10) #FFAA00
D1 (10-20) #FCD37F
D0 (20-30) #FFFF00
(30-70) #ffffff
Wet Conditions (Percentile Categories)
Value Map Hex Color
W0 (70-80) #AAFF55
W1 (80-90) #01FFFF
W2 (90-95) #00AAFF
W3 (95-98) #0000FF
W4 (98-100) #0000AA
Experimental
Future Conditions for San Francisco County

Evaporative Demand (EDDI) Forecast

 

The Evaporative Demand Drought Index (EDDI) is an experimental drought monitoring and early warning guidance tool. It examines how anomalous the atmospheric evaporative demand (E0; also known as "the thirst of the atmosphere") is for a given location and across a time period of interest. This experimental subseasonal EDDI forecast shows projected evaporative demand for the next 2 weeks and 4 weeks from the CFS-gridMET dataset at 4-km gridded resolution. Learn more.

Dry Conditions
Value Map Hex Color
D4 #730000
D3 #E60000
D2 #FFAA00
D1 #FCD37F
D0 #FFFF00
Wet Conditions
Value Map Hex Color
Near Normal #ffffff
W0 #AAFF55
W1 #01FFFF
W2 #00AAFF
W3 #0000FF
W4 #0000AA
Dry Conditions
Value Map Hex Color
D4 #730000
D3 #E60000
D2 #FFAA00
D1 #FCD37F
D0 #FFFF00
Wet Conditions
Value Map Hex Color
Near Normal #ffffff
W0 #AAFF55
W1 #01FFFF
W2 #00AAFF
W3 #0000FF
W4 #0000AA
Experimental Experimental

Climate Prediction Center Drought Outlooks

 

NOAA's Climate Prediction Center issues Monthly and Seasonal Drought Outlooks each month.

The Monthly Drought Outlook predicts whether drought will emerge, stay the same, improve, or be removed in the next month. Learn more.

The Seasonal Drought Outlook predicts whether drought will emerge, stay the same, improve, or be removed in the next three months. Learn more.

Value Map Hex Color
Drought persists #9B634A
Drought remains but improves #DED2BC
Drought removal likely #B2AD69
Drought development likely #FFDE63
No drought present #FFFFFF

Historical Conditions for San Francisco County

The U.S. Drought Monitor (USDM) is a national map released every Thursday, showing parts of the U.S. that are in drought. The USDM relies on drought experts to synthesize the best available data and work with local observers to interpret the information. The USDM also incorporates ground truthing and information about how drought is affecting people, via a network of more than 450 observers across the country, including state climatologists, National Weather Service staff, Extension agents, and hydrologists. Learn more.

Time Period (Years): to
Drought Numbers in San Francisco County
805,236

people in San Francisco County are affected by drought

same
No change
since last week
same
No change
since last month
100%

of people in San Francisco County are affected by drought

same
No change
since last week
same
No change
since last month
60th

wettest April on record, over the past 128 years

same
0.19
same
inches from normal
1st

driest year to date over the past 128 years (January-April 2022)

same
12.06
same
inches from normal