Statewide Rankings

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Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

California

Precipitation Rankings, August 1939

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
August 1939 1-Month	0.18" (4.57mm)	0.24" (6.10mm)	-0.06" (-1.53mm)	59th Driest	Driest since: 1938	1937, 2002
August 1939 1-Month	0.18" (4.57mm)	0.24" (6.10mm)	-0.06" (-1.53mm)	70th Wettest	Wettest since: 1936	1983
Jul–Aug 1939 2-Month	0.36" (9.14mm)	0.42" (10.67mm)	-0.06" (-1.53mm)	75th Driest	Driest since: 1938	1940
	0.36" (9.14mm)	0.42" (10.67mm)	-0.06" (-1.53mm)	54th Wettest	Wettest since: 1938	1983
	Ties: 1938, 1962, 2017
Jun–Aug 1939 3-Month	0.49" (12.45mm)	0.77" (19.56mm)	-0.28" (-7.11mm)	40th Driest	Driest since: 1933	2002
	0.49" (12.45mm)	0.77" (19.56mm)	-0.28" (-7.11mm)	89th Wettest	Wettest since: 1938	1913
	Ties: 1987
May–Aug 1939 4-Month	1.52" (38.61mm)	1.65" (41.91mm)	-0.13" (-3.30mm)	69th Driest	Driest since: 1938	1924
	1.52" (38.61mm)	1.65" (41.91mm)	-0.13" (-3.30mm)	60th Wettest	Wettest since: 1936	1998
	Ties: 1944
Apr–Aug 1939 5-Month	2.07" (52.58mm)	3.29" (83.57mm)	-1.22" (-30.99mm)	23rd Driest	Driest since: 1924	2021
Apr–Aug 1939 5-Month	2.07" (52.58mm)	3.29" (83.57mm)	-1.22" (-30.99mm)	106th Wettest	Wettest since: 1938	1896
Mar–Aug 1939 6-Month	4.72" (119.89mm)	6.50" (165.10mm)	-1.78" (-45.21mm)	38th Driest	Driest since: 1934	2008
Mar–Aug 1939 6-Month	4.72" (119.89mm)	6.50" (165.10mm)	-1.78" (-45.21mm)	91st Wettest	Wettest since: 1938	1995
Feb–Aug 1939 7-Month	6.69" (169.93mm)	10.35" (262.89mm)	-3.66" (-92.96mm)	22nd Driest	Driest since: 1934	1997, 2021
Feb–Aug 1939 7-Month	6.69" (169.93mm)	10.35" (262.89mm)	-3.66" (-92.96mm)	107th Wettest	Wettest since: 1938	1998
Jan–Aug 1939 8-Month	9.76" (247.90mm)	14.60" (370.84mm)	-4.84" (-122.94mm)	25th Driest	Driest since: 1934	2022
Jan–Aug 1939 8-Month	9.76" (247.90mm)	14.60" (370.84mm)	-4.84" (-122.94mm)	104th Wettest	Wettest since: 1938	1995
Dec 1938–Aug 1939 9-Month	12.49" (317.25mm)	18.22" (462.79mm)	-5.73" (-145.54mm)	22nd Driest	Driest since: 1931	1924
Dec 1938–Aug 1939 9-Month	12.49" (317.25mm)	18.22" (462.79mm)	-5.73" (-145.54mm)	106th Wettest	Wettest since: 1938	1998
Nov 1938–Aug 1939 10-Month	13.73" (348.74mm)	20.80" (528.32mm)	-7.07" (-179.58mm)	12th Driest	Driest since: 1931	1924
Nov 1938–Aug 1939 10-Month	13.73" (348.74mm)	20.80" (528.32mm)	-7.07" (-179.58mm)	116th Wettest	Wettest since: 1938	1983
Oct 1938–Aug 1939 11-Month	15.24" (387.10mm)	22.00" (558.80mm)	-6.76" (-171.70mm)	15th Driest	Driest since: 1931	1924
Oct 1938–Aug 1939 11-Month	15.24" (387.10mm)	22.00" (558.80mm)	-6.76" (-171.70mm)	113th Wettest	Wettest since: 1938	1983
Sep 1938–Aug 1939 12-Month	15.70" (398.78mm)	22.44" (569.98mm)	-6.74" (-171.20mm)	14th Driest	Driest since: 1934	2021
Sep 1938–Aug 1939 12-Month	15.70" (398.78mm)	22.44" (569.98mm)	-6.74" (-171.20mm)	114th Wettest	Wettest since: 1938	1983
Mar 1938–Aug 1939 18-Month	26.61" (675.89mm)	28.96" (735.58mm)	-2.35" (-59.69mm)	51st Driest	Driest since: 1934	1977
Mar 1938–Aug 1939 18-Month	26.61" (675.89mm)	28.96" (735.58mm)	-2.35" (-59.69mm)	77th Wettest	Wettest since: 1938	1983
Sep 1937–Aug 1939 24-Month	49.04" (1,245.62mm)	44.90" (1,140.46mm)	4.14" (105.16mm)	91st Driest	Driest since: 1937	1977
Sep 1937–Aug 1939 24-Month	49.04" (1,245.62mm)	44.90" (1,140.46mm)	4.14" (105.16mm)	36th Wettest	Wettest since: 1938	1983
Sep 1936–Aug 1939 36-Month	72.25" (1,835.15mm)	67.31" (1,709.67mm)	4.94" (125.48mm)	87th Driest	Driest since: 1937	2022
Sep 1936–Aug 1939 36-Month	72.25" (1,835.15mm)	67.31" (1,709.67mm)	4.94" (125.48mm)	39th Wettest	Wettest since: 1938	1984
Sep 1935–Aug 1939 48-Month	95.38" (2,422.65mm)	89.50" (2,273.30mm)	5.88" (149.35mm)	88th Driest	Driest since: 1937	2015
Sep 1935–Aug 1939 48-Month	95.38" (2,422.65mm)	89.50" (2,273.30mm)	5.88" (149.35mm)	37th Wettest	Wettest since: 1938	1998
Sep 1934–Aug 1939 60-Month	120.42" (3,058.67mm)	111.68" (2,836.67mm)	8.74" (222.00mm)	95th Driest	Driest since: 1938	1991
Sep 1934–Aug 1939 60-Month	120.42" (3,058.67mm)	111.68" (2,836.67mm)	8.74" (222.00mm)	29th Wettest	Wettest since: 1911	1999

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on January 30, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings