Months with extreme seasonal effects (month name and number of times the month is a high-2 or low-2 seasonal factor) | |||||||
---|---|---|---|---|---|---|---|
State | Spectral analysis (p value for Bartlett’s test) | Stable seasonality test (p value) | Seasonal factor range | Most frequent high month | 2nd most frequent high month | Most frequent low month | 2nd most frequent low month |
*All 34 (17×2) possible occurrences of “high-2” or “low-2” months are represented by the two tied “most frequent” months. | |||||||
†Georgia has an abnormally large June (fiscal year) effect. | |||||||
Alabama | 0.0133 | <0.0001 | 23.97 | Oct (13) | Jun (10) | Feb (17) | Jan (5) |
Alaska | <0.0001 | <0.0001 | 56.45 | Jul (11) | Aug (9) | Feb (13) | Nov (9) |
Arizona | 0.0016 | <0.0001 | 22.69 | Jan (10) | Oct (7) | Feb/Mar (17) | * |
Arkansas | 0.0175 | <0.0001 | 27.73 | Jun (17) | May (7) | Feb (17) | Jan (8) |
California | <0.0001 | <0.0001 | 21.67 | Jun (14) | May (7) | Jan/Feb (17) | * |
Colorado | <0.0001 | <0.0001 | 28.50 | Sep (12) | Jul/Aug (8) | Feb (17) | Mar (13) |
Connecticut | <0.0001 | <0.0001 | 24.17 | Jun (11) | Aug (7 | Feb (17) | Jan (14) |
Delaware | <0.0001 | <0.0001 | 61.65 | Jun (11) | Aug (8) | Feb (16) | Jul (9) |
DC | <0.0001 | <0.0001 | 50.25 | Jun (10) | Oct (9) | Jan/Feb (10) | Nov (7) |
Florida | <0.0001 | <0.0001 | 13.90 | Apr (11) | Mar/May/Nov (6) | Feb (17) | Sep (11) |
Georgia | <0.0001 | <0.0001 | 178.69† | Jun (17) | Jan/Oct/Dec (5) | Jul (17) | Aug (12) |
Hawaii | <0.0001 | 0.0111 | 36.99 | Oct (12) | Jun (8) | Jul (13) | Feb/Nov (6) |
Idaho | 0.0002 | <0.0001 | 36.28 | Jun (14) | Aug (12) | Feb (17) | Jan (10) |
Illinois | <0.0001 | <0.0001 | 26.16 | Jun/Aug (15) | May/Nov (2) | Jan/Feb (17) | * |
Indiana | <0.0001 | <0.0001 | 27.35 | Jun (17) | Aug (8) | Feb (17) | Jan (14) |
Iowa | <0.0001 | <0.0001 | 32.61 | Jun (17) | Aug/Dec (5) | Feb (17) | Jan (15) |
Kansas | <0.0001 | <0.0001 | 24.35 | Jul (14) | Aug (9) | Feb (17) | Jan (7) |
Kentucky | 0.2371 | <0.0001 | 41.76 | Jun (17) | May/Dec (7) | Feb (17) | Jan (10) |
Louisiana | <0.0001 | <0.0001 | 30.75 | Jun (17) | May (7) | Feb (17) | Jan (7) |
Maine | <0.0001 | <0.0001 | 30.63 | Aug (17) | Jun (9) | Feb (15) | Jan (12) |
Maryland | <0.0001 | <0.0001 | 28.16 | Aug (8) | Jun (7) | Jan/Feb (17) | * |
Massachusetts | <0.0001 | <0.0001 | 30.49 | Jun (17) | Aug (8) | Feb (17) | Jan (14) |
Michigan | <0.0001 | <0.0001 | 19.85 | Aug (12) | Jul (8) | Mar (17) | Feb (13) |
Minnesota | <0.0001 | <0.0001 | 35.46 | Jun (13) | May (6) | Feb (16) | Jan (8) |
Mississippi | 0.0913 | <0.0001 | 23.02 | Jun (17) | May (7) | Feb (17) | Jan (8) |
Missouri | <0.0001 | <0.0001 | 20.18 | Jul (15) | Aug (12) | Feb (17) | Mar (14) |
Montana | 0.0067 | <0.0001 | 38.40 | Aug (17) | Jun (9) | Feb (17) | Apr (6) |
Nebraska | <0.0001 | <0.0001 | 29.32 | Jun (14) | Aug (9) | Feb (17) | Jan (14) |
Nevada | <0.0001 | <0.0001 | 20.12 | Jun (11) | Jul (8) | Feb (16) | Mar (8) |
New Hampshire | <0.0001 | <0.0001 | 38.16 | Jun/Aug (17) | * | Feb (17) | Jan (15) |
New Jersey | <0.0001 | <0.0001 | 27.43 | Jun (16) | Dec (10) | Jan/Feb (17) | * |
New Mexico | <0.0001 | <0.0001 | 29.30 | Jun (17) | Sep (11) | Feb (12) | Jan (10) |
New York | <0.0001 | <0.0001 | 27.17 | Apr (9) | Jun (8) | Feb (17) | Jan (9) |
North Carolina | <0.0001 | <0.0001 | 35.29 | Jun (13) | Jul (9) | Feb/Mar (17) | * |
North Dakota | <0.0001 | <0.0001 | 29.53 | Jun/Aug (9) | Sep/Oct (5) | Feb (12) | Jan (9) |
Ohio | <0.0001 | <0.0001 | 23.43 | Jun (12) | Jul (10) | Jan/Feb (17) | * |
Oklahoma | <0.0001 | <0.0001 | 27.59 | Jun (17) | May (11) | Jan/Feb (17) | * |
Oregon | <0.0001 | <0.0001 | 28.45 | Jun/Aug (10) | May (7) | Feb (17) | Jan (14) |
Pennsylvania | <0.0001 | <0.0001 | 25.68 | Jun (17) | Dec (6) | Jan/Feb (17) | * |
Rhode Island | <0.0001 | <0.0001 | 30.87 | Jun (15) | Aug (9) | Feb (17) | Jan (14) |
South Carolina | 0.1222 | <0.0001 | 29.95 | Jun (17) | Dec (7) | Jan (17) | Feb (14) |
South Dakota | 0.0128 | <0.0001 | 34.99 | Jun (11) | Jul (10) | Feb (17) | Nov (9) |
Tennessee | 0.0001 | <0.0001 | 29.62 | May (16) | Jun (10) | Feb (17) | Jan (10) |
Texas | <0.0001 | <0.0001 | 27.65 | Jun (13) | Dec (11) | Feb (17) | Jan (13) |
Utah | 0.1037 | <0.0001 | 34.04 | Aug (14) | Jun (12) | Feb (17) | Jul (5) |
Vermont | <0.0001 | <0.0001 | 29.11 | Aug (14) | Sep (12) | Mar (12) | Feb (11) |
Virginia | <0.0001 | <0.0001 | 33.38 | Jun (17) | Aug (9) | Feb (17) | Jan (8) |
Washington | <0.0001 | <0.0001 | 26.53 | Jun (12) | Aug (11) | Feb (17) | Jan (10) |
West Virginia | 0.2684 | <0.0001 | 21.95 | Aug (16) | Jun (12) | Feb (16) | Oct (6) |
Wisconsin | <0.0001 | <0.0001 | 24.27 | Aug (14) | Jul (10) | Feb (17) | Mar (8) |
Wyoming | 0.0237 | <0.0001 | 38.51 | Aug (12) | Jun (10) | Feb (14) | May (7) |