Please note, Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales. Data are available for bulk download.
Base Period
Trend

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Contiguous U.S. Maximum Temperature
May
Period
Maximum Temperature
Rank
(out of 130)
May 202474.64ยฐF106
May 202375.07ยฐF115
May 202274.46ยฐF101
May 202172.84ยฐF57
May 202073.38ยฐF76
May 201970.84ยฐF10
May 201878.37ยฐF129
May 201773.24ยฐF72
May 201672.48ยฐF50
May 201572.52ยฐF51
May 201474.07ยฐF90
May 201373.51ยฐF79
May 201276.62ยฐF127
May 201171.17ยฐF16
May 201072.00ยฐF35
May 200974.14ยฐF93
May 200872.10ยฐF38
May 200775.33ยฐF119
May 200675.45ยฐF122
May 200571.98ยฐF34
May 200474.35ยฐF96
May 200373.18ยฐF70
May 200272.45ยฐF49
May 200176.10ยฐF125
May 200075.97ยฐF123
May 199972.70ยฐF54
May 199875.11ยฐF116
May 199772.27ยฐF45
May 199672.93ยฐF61
May 199570.05ยฐF5
May 199473.47ยฐF78
May 199373.36ยฐF74
May 199274.26ยฐF95
May 199173.53ยฐF80
May 199070.88ยฐF11
May 198973.15ยฐF67
May 198874.93ยฐF112
May 198775.34ยฐF121
May 198673.69ยฐF84
May 198575.15ยฐF117
May 198472.95ยฐF62
May 198370.50ยฐF7
May 198273.13ยฐF66
May 198171.06ยฐF14
May 198072.72ยฐF55
May 197971.44ยฐF22
May 197871.83ยฐF29
May 197774.08ยฐF92
May 197672.23ยฐF43
May 197572.90ยฐF60
May 197472.86ยฐF58
May 197372.19ยฐF40
May 197273.42ยฐF77
May 197171.17ยฐF16
May 197074.37ยฐF97
May 196974.70ยฐF107
May 196870.61ยฐF8
May 196770.47ยฐF6
May 196673.80ยฐF86
May 196573.38ยฐF76
May 196474.39ยฐF99
May 196373.94ยฐF87
May 196274.89ยฐF111
May 196171.67ยฐF27
May 196072.37ยฐF47
May 195973.11ยฐF65
May 195876.01ยฐF124
May 195771.17ยฐF16
May 195674.64ยฐF106
May 195574.25ยฐF94
May 195471.44ยฐF22
May 195371.31ยฐF21
May 195273.69ยฐF84
May 195173.99ยฐF88
May 195072.23ยฐF43
May 194974.52ยฐF102
May 194873.18ยฐF70
May 194773.18ยฐF70
May 194671.24ยฐF19
May 194571.15ยฐF15
May 194474.95ยฐF113
May 194372.18ยฐF39
May 194271.53ยฐF25
May 194175.22ยฐF118
May 194074.53ยฐF103
May 193976.44ยฐF126
May 193872.05ยฐF37
May 193775.34ยฐF121
May 193677.11ยฐF128
May 193568.88ยฐF3
May 193479.21ยฐF130
May 193371.91ยฐF31
May 193273.36ยฐF74
May 193172.86ยฐF58
May 193071.49ยฐF24
May 192971.62ยฐF26
May 192875.04ยฐF114
May 192771.94ยฐF32
May 192674.41ยฐF100
May 192573.62ยฐF81
May 192471.26ยฐF20
May 192372.27ยฐF45
May 192273.69ยฐF84
May 192172.52ยฐF51
May 192071.76ยฐF28
May 191972.59ยฐF53
May 191873.78ยฐF85
May 191767.21ยฐF1
May 191672.19ยฐF40
May 191569.73ยฐF4
May 191474.01ยฐF89
May 191373.22ยฐF71
May 191273.02ยฐF64
May 191174.71ยฐF108
May 191072.41ยฐF48
May 190971.02ยฐF13
May 190870.93ยฐF12
May 190768.13ยฐF2
May 190671.96ยฐF33
May 190570.79ยฐF9
May 190473.00ยฐF63
May 190371.87ยฐF30
May 190274.39ยฐF99
May 190174.08ยฐF92
May 190074.88ยฐF110
May 189972.21ยฐF42
May 189872.03ยฐF36
May 189774.59ยฐF104
May 189674.75ยฐF109
May 189572.77ยฐF56

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