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.

Massachusetts

Precipitation Rankings, September 1951

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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
September 1951 1-Month	2.56" (65.02mm)	3.79" (96.27mm)	-1.23" (-31.25mm)	40th Driest	Driest since: 1950	1914
September 1951 1-Month	2.56" (65.02mm)	3.79" (96.27mm)	-1.23" (-31.25mm)	89th Wettest	Wettest since: 1949	1938
Aug–Sep 1951 2-Month	6.53" (165.86mm)	7.69" (195.33mm)	-1.16" (-29.47mm)	50th Driest	Driest since: 1950	1984
Aug–Sep 1951 2-Month	6.53" (165.86mm)	7.69" (195.33mm)	-1.16" (-29.47mm)	79th Wettest	Wettest since: 1949	2011
Jul–Sep 1951 3-Month	10.42" (264.67mm)	11.37" (288.80mm)	-0.95" (-24.13mm)	54th Driest	Driest since: 1950	1968
Jul–Sep 1951 3-Month	10.42" (264.67mm)	11.37" (288.80mm)	-0.95" (-24.13mm)	75th Wettest	Wettest since: 1946	2021
Jun–Sep 1951 4-Month	13.57" (344.68mm)	15.02" (381.51mm)	-1.45" (-36.83mm)	45th Driest	Driest since: 1950	1957
Jun–Sep 1951 4-Month	13.57" (344.68mm)	15.02" (381.51mm)	-1.45" (-36.83mm)	84th Wettest	Wettest since: 1947	1938
May–Sep 1951 5-Month	17.54" (445.52mm)	18.61" (472.69mm)	-1.07" (-27.17mm)	53rd Driest	Driest since: 1950	1964
May–Sep 1951 5-Month	17.54" (445.52mm)	18.61" (472.69mm)	-1.07" (-27.17mm)	76th Wettest	Wettest since: 1948	1938
Apr–Sep 1951 6-Month	20.76" (527.30mm)	22.51" (571.75mm)	-1.75" (-44.45mm)	49th Driest	Driest since: 1950	1964
Apr–Sep 1951 6-Month	20.76" (527.30mm)	22.51" (571.75mm)	-1.75" (-44.45mm)	80th Wettest	Wettest since: 1948	1938
Mar–Sep 1951 7-Month	25.59" (649.99mm)	26.45" (671.83mm)	-0.86" (-21.84mm)	51st Driest	Driest since: 1950	1965
Mar–Sep 1951 7-Month	25.59" (649.99mm)	26.45" (671.83mm)	-0.86" (-21.84mm)	78th Wettest	Wettest since: 1948	1938
Feb–Sep 1951 8-Month	30.20" (767.08mm)	29.66" (753.36mm)	0.54" (13.72mm)	67th Driest	Driest since: 1950	1957
	30.20" (767.08mm)	29.66" (753.36mm)	0.54" (13.72mm)	62nd Wettest	Wettest since: 1946	2008
	Ties: 1987
Jan–Sep 1951 9-Month	33.41" (848.61mm)	33.30" (845.82mm)	0.11" (2.79mm)	62nd Driest	Driest since: 1950	1957
Jan–Sep 1951 9-Month	33.41" (848.61mm)	33.30" (845.82mm)	0.11" (2.79mm)	67th Wettest	Wettest since: 1946	2008
Dec 1950–Sep 1951 10-Month	37.40" (949.96mm)	37.13" (943.10mm)	0.27" (6.86mm)	61st Driest	Driest since: 1950	1957
Dec 1950–Sep 1951 10-Month	37.40" (949.96mm)	37.13" (943.10mm)	0.27" (6.86mm)	67th Wettest	Wettest since: 1946	2008
Nov 1950–Sep 1951 11-Month	43.79" (1,112.27mm)	41.15" (1,045.21mm)	2.64" (67.06mm)	82nd Driest	Driest since: 1950	1965
Nov 1950–Sep 1951 11-Month	43.79" (1,112.27mm)	41.15" (1,045.21mm)	2.64" (67.06mm)	46th Wettest	Wettest since: 1946	2008
Oct 1950–Sep 1951 12-Month	45.86" (1,164.84mm)	44.66" (1,134.36mm)	1.20" (30.48mm)	67th Driest	Driest since: 1950	1965
Oct 1950–Sep 1951 12-Month	45.86" (1,164.84mm)	44.66" (1,134.36mm)	1.20" (30.48mm)	61st Wettest	Wettest since: 1946	2006
Apr 1950–Sep 1951 18-Month	63.65" (1,616.71mm)	67.07" (1,703.58mm)	-3.42" (-86.87mm)	39th Driest	Driest since: 1950	1965
Apr 1950–Sep 1951 18-Month	63.65" (1,616.71mm)	67.07" (1,703.58mm)	-3.42" (-86.87mm)	89th Wettest	Wettest since: 1949	2006
Oct 1949–Sep 1951 24-Month	82.43" (2,093.72mm)	89.25" (2,266.95mm)	-6.82" (-173.23mm)	25th Driest	Driest since: 1950	1966
	82.43" (2,093.72mm)	89.25" (2,266.95mm)	-6.82" (-173.23mm)	102nd Wettest	Wettest since: 1949	2007
	Ties: 1925
Oct 1948–Sep 1951 36-Month	123.45" (3,135.63mm)	133.88" (3,400.55mm)	-10.43" (-264.92mm)	24th Driest	Driest since: 1950	1966
Oct 1948–Sep 1951 36-Month	123.45" (3,135.63mm)	133.88" (3,400.55mm)	-10.43" (-264.92mm)	102nd Wettest	Wettest since: 1948	2008
Oct 1947–Sep 1951 48-Month	166.73" (4,234.94mm)	178.50" (4,533.90mm)	-11.77" (-298.96mm)	22nd Driest	Driest since: 1950	1966
Oct 1947–Sep 1951 48-Month	166.73" (4,234.94mm)	178.50" (4,533.90mm)	-11.77" (-298.96mm)	103rd Wettest	Wettest since: 1949	2009
Oct 1946–Sep 1951 60-Month	203.88" (5,178.55mm)	223.10" (5,666.74mm)	-19.22" (-488.19mm)	14th Driest	Driest since: 1944	1966
Oct 1946–Sep 1951 60-Month	203.88" (5,178.55mm)	223.10" (5,666.74mm)	-19.22" (-488.19mm)	110th Wettest	Wettest since: 1950	2010

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on April 1, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings