Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. 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 River Basin

Average Temperature Rankings, October 2020

View Period (Months):
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  • Record Coolest
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  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
October 2020
1-Month
66.2°F
(19.0°C)
59.5°F
(15.3°C)
6.7°F
(3.7°C)
128th Coolest
Coolest since:
1916
1st Warmest
Warmest to Date
2020
Sep–Oct 2020
2-Month
70.0°F
(21.1°C)
64.0°F
(17.8°C)
6.0°F
(3.3°C)
128th Coolest
Coolest since:
1916, 1920
1st Warmest
Warmest to Date
2020
Aug–Oct 2020
3-Month
73.0°F
(22.8°C)
67.2°F
(19.6°C)
5.8°F
(3.2°C)
128th Coolest
Coolest since:
1900
1st Warmest
Warmest to Date
2020
Jul–Oct 2020
4-Month
73.9°F
(23.3°C)
69.1°F
(20.6°C)
4.8°F
(2.7°C)
128th Coolest
Coolest since:
1912
1st Warmest
Warmest to Date
2020
Jun–Oct 2020
5-Month
73.2°F
(22.9°C)
69.0°F
(20.6°C)
4.2°F
(2.3°C)
128th Coolest
Coolest since:
1912
1st Warmest
Warmest to Date
2020
May–Oct 2020
6-Month
71.8°F
(22.1°C)
67.6°F
(19.8°C)
4.2°F
(2.3°C)
128th Coolest
Coolest since:
1916
1st Warmest
Warmest to Date
2020
Apr–Oct 2020
7-Month
69.6°F
(20.9°C)
65.7°F
(18.7°C)
3.9°F
(2.2°C)
128th Coolest
Coolest since:
1912
1st Warmest
Warmest to Date
2020
Mar–Oct 2020
8-Month
66.9°F
(19.4°C)
63.5°F
(17.5°C)
3.4°F
(1.9°C)
125th Coolest
Coolest since:
1912
4th Warmest
Warmest since:
2014, 2015
Feb–Oct 2020
9-Month
64.9°F
(18.3°C)
61.5°F
(16.4°C)
3.4°F
(1.9°C)
126th Coolest
Coolest since:
1912
3rd Warmest
Warmest since:
2015
Ties: 2022
Jan–Oct 2020
10-Month
63.0°F
(17.2°C)
59.6°F
(15.3°C)
3.4°F
(1.9°C)
126th Coolest
Coolest since:
1911, 1912
3rd Warmest
Warmest since:
2015
Ties: 2022
Dec 2019–Oct 2020
11-Month
61.3°F
(16.3°C)
58.1°F
(14.5°C)
3.2°F
(1.8°C)
125th Coolest
Coolest since:
1912
3rd Warmest
Warmest since:
2015
Nov 2019–Oct 2020
12-Month
60.6°F
(15.9°C)
57.4°F
(14.1°C)
3.2°F
(1.8°C)
124th Coolest
Coolest since:
1912
4th Warmest
Warmest since:
2015
May 2019–Oct 2020
18-Month
63.1°F
(17.3°C)
60.7°F
(15.9°C)
2.4°F
(1.4°C)
120th Coolest
Coolest since:
1912
8th Warmest
Warmest since:
2015
Nov 2018–Oct 2020
24-Month
59.5°F
(15.3°C)
57.4°F
(14.1°C)
2.1°F
(1.2°C)
118th Coolest
Coolest since:
1912, 1949
9th Warmest
Warmest since:
2015
Nov 2017–Oct 2020
36-Month
59.8°F
(15.4°C)
57.4°F
(14.1°C)
2.4°F
(1.3°C)
120th Coolest
Coolest since:
1913
6th Warmest
Warmest since:
2016
Ties: 2014
Nov 2016–Oct 2020
48-Month
59.8°F
(15.4°C)
57.3°F
(14.1°C)
2.5°F
(1.3°C)
118th Coolest
Coolest since:
1912, 1913
7th Warmest
Warmest since:
2017
Nov 2015–Oct 2020
60-Month
59.8°F
(15.4°C)
57.4°F
(14.1°C)
2.4°F
(1.3°C)
117th Coolest
Coolest since:
1913
7th Warmest
Warmest since:
2018
Ties: 2015

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