Regional Rankings

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Please note, Palmer Indices are not available for NWS Regions. Degree Days are not available for Great Plains, Souther Plains and Gulf Coast Rockies and Westward, River Basins, or Agricultural Belts. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Northwest Climate Region

Precipitation Rankings, December 1929

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Record Driest

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
December 1929 1-Month	6.43" (163.32mm)	4.63" (117.60mm)	1.80" (45.72mm)	117th Driest	Driest since: 1928	1976
December 1929 1-Month	6.43" (163.32mm)	4.63" (117.60mm)	1.80" (45.72mm)	12th Wettest	Wettest since: 1917	1964
Nov–Dec 1929 2-Month	6.89" (175.01mm)	8.97" (227.84mm)	-2.08" (-52.83mm)	28th Driest	Driest since: 1928	1976
Nov–Dec 1929 2-Month	6.89" (175.01mm)	8.97" (227.84mm)	-2.08" (-52.83mm)	101st Wettest	Wettest since: 1927	1996
Oct–Dec 1929 3-Month	8.01" (203.45mm)	11.51" (292.35mm)	-3.50" (-88.90mm)	15th Driest	Driest since: 1914	1976
Oct–Dec 1929 3-Month	8.01" (203.45mm)	11.51" (292.35mm)	-3.50" (-88.90mm)	114th Wettest	Wettest since: 1928	1996
Sep–Dec 1929 4-Month	8.48" (215.39mm)	12.93" (328.42mm)	-4.45" (-113.03mm)	9th Driest	Driest to Date	1976
Sep–Dec 1929 4-Month	8.48" (215.39mm)	12.93" (328.42mm)	-4.45" (-113.03mm)	120th Wettest	Wettest since: 1928	1996
Aug–Dec 1929 5-Month	8.83" (224.28mm)	13.73" (348.74mm)	-4.90" (-124.46mm)	7th Driest	Driest to Date	1936
Aug–Dec 1929 5-Month	8.83" (224.28mm)	13.73" (348.74mm)	-4.90" (-124.46mm)	122nd Wettest	Wettest since: 1928	1996
Jul–Dec 1929 6-Month	8.97" (227.84mm)	14.46" (367.28mm)	-5.49" (-139.44mm)	5th Driest	Driest to Date	1936
	8.97" (227.84mm)	14.46" (367.28mm)	-5.49" (-139.44mm)	124th Wettest	Wettest since: 1928	1996
	Ties: 1930
Jun–Dec 1929 7-Month	11.13" (282.70mm)	16.18" (410.97mm)	-5.05" (-128.27mm)	7th Driest	Driest to Date	1976
Jun–Dec 1929 7-Month	11.13" (282.70mm)	16.18" (410.97mm)	-5.05" (-128.27mm)	122nd Wettest	Wettest since: 1928	1996
May–Dec 1929 8-Month	12.17" (309.12mm)	18.32" (465.33mm)	-6.15" (-156.21mm)	4th Driest	Driest since: 1928	1935
	12.17" (309.12mm)	18.32" (465.33mm)	-6.15" (-156.21mm)	125th Wettest	Wettest since: 1928	1996
	Ties: 1928
Apr–Dec 1929 9-Month	15.03" (381.76mm)	20.67" (525.02mm)	-5.64" (-143.26mm)	8th Driest	Driest since: 1928	1976
Apr–Dec 1929 9-Month	15.03" (381.76mm)	20.67" (525.02mm)	-5.64" (-143.26mm)	121st Wettest	Wettest since: 1927	1996
Mar–Dec 1929 10-Month	17.65" (448.31mm)	23.93" (607.82mm)	-6.28" (-159.51mm)	7th Driest	Driest to Date	1976
Mar–Dec 1929 10-Month	17.65" (448.31mm)	23.93" (607.82mm)	-6.28" (-159.51mm)	122nd Wettest	Wettest since: 1928	1996
Feb–Dec 1929 11-Month	18.98" (482.09mm)	27.54" (699.52mm)	-8.56" (-217.43mm)	2nd Driest	Driest to Date	1935
Feb–Dec 1929 11-Month	18.98" (482.09mm)	27.54" (699.52mm)	-8.56" (-217.43mm)	127th Wettest	Wettest since: 1928	1996
Jan–Dec 1929 12-Month	22.36" (567.94mm)	32.07" (814.58mm)	-9.71" (-246.64mm)	1st Driest	Driest to Date	1929
Jan–Dec 1929 12-Month	22.36" (567.94mm)	32.07" (814.58mm)	-9.71" (-246.64mm)	128th Wettest	Wettest since: 1928	1996
Jul 1928–Dec 1929 18-Month	32.64" (829.06mm)	46.58" (1,183.13mm)	-13.94" (-354.07mm)	1st Driest	Driest to Date	1929
Jul 1928–Dec 1929 18-Month	32.64" (829.06mm)	46.58" (1,183.13mm)	-13.94" (-354.07mm)	127th Wettest	Wettest since: 1928	1996
Jan 1928–Dec 1929 24-Month	47.91" (1,216.91mm)	64.19" (1,630.43mm)	-16.28" (-413.52mm)	2nd Driest	Driest to Date	1930
Jan 1928–Dec 1929 24-Month	47.91" (1,216.91mm)	64.19" (1,630.43mm)	-16.28" (-413.52mm)	126th Wettest	Wettest since: 1928	1996
Jan 1927–Dec 1929 36-Month	84.55" (2,147.57mm)	96.33" (2,446.78mm)	-11.78" (-299.21mm)	7th Driest	Driest to Date	1930
Jan 1927–Dec 1929 36-Month	84.55" (2,147.57mm)	96.33" (2,446.78mm)	-11.78" (-299.21mm)	120th Wettest	Wettest since: 1928	1997
Jan 1926–Dec 1929 48-Month	114.86" (2,917.44mm)	128.33" (3,259.58mm)	-13.47" (-342.14mm)	8th Driest	Driest since: 1925	1931
Jan 1926–Dec 1929 48-Month	114.86" (2,917.44mm)	128.33" (3,259.58mm)	-13.47" (-342.14mm)	118th Wettest	Wettest since: 1928	1998
Jan 1925–Dec 1929 60-Month	144.60" (3,672.84mm)	160.34" (4,072.64mm)	-15.74" (-399.80mm)	8th Driest	Driest to Date	1932
Jan 1925–Dec 1929 60-Month	144.60" (3,672.84mm)	160.34" (4,072.64mm)	-15.74" (-399.80mm)	117th Wettest	Wettest since: 1928	1999

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published March 2023, retrieved on March 26, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings