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Legend (OAR_OAP/HeatWaves)

Heat Wave Frequency in 50 Large U.S. Cities, 1961–2017 (Statistically Significant) (1)
< 2.2 < 2.2
2.2 - 3.6 2.2 - 3.6
3.6 - 5.1 3.6 - 5.1
5.1 - 6.7 5.1 - 6.7
> 6.7 > 6.7
Heat Wave Frequency in 50 Large U.S. Cities, 1961–2017 (Not Statistically Significant) (2)
< 2.2 < 2.2
2.2 - 3.6 2.2 - 3.6
3.6 - 5.1 3.6 - 5.1
5.1 - 6.7 5.1 - 6.7
> 6.7 > 6.7
Heat Wave Duration in 50 Large U.S. Cities, 1961–2017 (Statistically Significant) (4)
< 0 < 0
0 - 1 0 - 1
1 - 2 1 - 2
2 - 3.5 2 - 3.5
> 3.5 > 3.5
Heat Wave Duration in 50 Large U.S. Cities, 1961–2017 (Not Statistically Significant) (5)
< 0 < 0
0 - 1 0 - 1
1 - 2 1 - 2
2 - 3.5 2 - 3.5
> 3.5 > 3.5
Heat Wave Season in 50 Large U.S. Cities, 1961–2017 (Statistically Significant) (7)
< 10 < 10
11 - 16 11 - 16
16 - 45 16 - 45
45 - 75 45 - 75
> 75 > 75
Heat Wave Season in 50 Large U.S. Cities, 1961–2017 (Not Statistically Significant) (8)
< 10 < 10
11 - 16 11 - 16
16 - 45 16 - 45
45 - 75 45 - 75
> 75 > 75
Heat Wave Intensity in 50 Large U.S. Cities, 1961–2017 (Statistically Significant) (10)
< 0 < 0
0 - 0.75 0 - 0.75
0.76 - 0.94 0.76 - 0.94
0.95 - 1.2 0.95 - 1.2
> 1.2 > 1.2
Heat Wave Intensity in 50 Large U.S. Cities, 1961–2017 (Not Statistically Significant) (11)
< 0 < 0
0 - 0.75 0 - 0.75
0.76 - 0.94 0.76 - 0.94
0.95 - 1.2 0.95 - 1.2
> 1.2 > 1.2