National Weather Service United States Department of Commerce

SEPTEMBER NORMALS & EXTREMES
PLUS SUNRISE/SUNSET & CIVIL TWILIGHT TIMES

LAFAYETTE

  TEMP NORMALS WARMEST COOLEST COOLEST WARMEST NORM RECORD NORMS
 DAY MAX MIN MEAN MAX/YR MAX/YR MIN/YR MIN/YR RAIN RAIN/YR HDD CDD
 1 91 74 82 101/2000 78/2008 57/1915 81/2020 0.20 3.71/2008 0 17
CT STARTS 0521 CST    SUNRISE 0545 CST    SUNSET 1830 CST    CT ENDS 1854 CST
 2 91 73 82 102/2000 78/2018 57/1919 78/2020 0.19 2.28/2001 0 17
CT STARTS 0521 CST    SUNRISE 0546 CST    SUNSET 1829 CST    CT ENDS 1853 CST
 3 91 73 82 103/2000 78/1988 59/1903 78/2000* 0.20 4.23/2011 0 17
CT STARTS 0522 CST    SUNRISE 0546 CST    SUNSET 1827 CST    CT ENDS 1852 CST
 4 91 73 82 101/2000 77/1974* 56/1952 78/2020 0.19 3.40/1934 0 17
CT STARTS 0522 CST    SUNRISE 0547 CST    SUNSET 1826 CST    CT ENDS 1850 CST
 5 91 73 82 100/2000 76/1967* 56/1952* 78/2023* 0.18 4.41/1973 0 17
CT STARTS 0523 CST    SUNRISE 0547 CST    SUNSET 1825 CST    CT ENDS 1849 CST
 6 91 73 82 101/1925 75/1893 58/1953* 78/2023* 0.19 1.71/1997 0 17
CT STARTS 0524 CST    SUNRISE 0548 CST    SUNSET 1824 CST    CT ENDS 1848 CST
 7 91 73 82 100/2023* 72/1893 51/1918 77/2019* 0.19 2.80/1893 0 16
CT STARTS 0524 CST    SUNRISE 0548 CST    SUNSET 1822 CST    CT ENDS 1847 CST
 8 90 72 81 99/1925 76/2001* 51/1918 78/2019 0.19 2.46/1974 0 16
CT STARTS 0525 CST    SUNRISE 0549 CST    SUNSET 1821 CST    CT ENDS 1845 CST
 9 90 72 81 98/1925* 76/2001 55/1918 78/1971 0.20 2.16/1894 0 16
CT STARTS 0525 CST    SUNRISE 0550 CST    SUNSET 1820 CST    CT ENDS 1844 CST
 10 90 72 81 101/1954 77/1998* 52/1918 79/1971 0.19 3.79/1965 0 16
CT STARTS 0526 CST    SUNRISE 0550 CST    SUNSET 1819 CST    CT ENDS 1843 CST
 11 90 72 81 98/1921* 76/2009* 52/1918 77/1961 0.18 6.19/1998 0 16
CT STARTS 0526 CST    SUNRISE 0551 CST    SUNSET 1818 CST    CT ENDS 1842 CST
 12 90 72 81 99/1915 76/1897 50/1940 80/1961 0.17 1.96/1973 0 16
CT STARTS 0527 CST    SUNRISE 0551 CST    SUNSET 1816 CST    CT ENDS 1840 CST
 13 90 71 81 99/1912 74/1959 48/1940 80/2008 0.18 2.48/2007 0 16
CT STARTS 0528 CST    SUNRISE 0552 CST    SUNSET 1815 CST    CT ENDS 1839 CST
 14 89 71 80 99/1921* 75/1959 46/1902 78/1978 0.17 4.03/2021 0 15
CT STARTS 0528 CST    SUNRISE 0552 CST    SUNSET 1814 CST    CT ENDS 1838 CST
 15 89 71 80 100/1912 73/1993 48/1902 77/2018 0.18 1.42/1978 0 15
CT STARTS 0529 CST    SUNRISE 0553 CST    SUNSET 1812 CST    CT ENDS 1836 CST
 16 89 71 80 100/1933 73/1966* 48/1902 79/1996 0.16 4.63/1942 0 15
CT STARTS 0529 CST    SUNRISE 0553 CST    SUNSET 1811 CST    CT ENDS 1835 CST
 17 89 70 80 99/2004* 68/1943 54/1961 77/2018* 0.15 5.92/1963 0 15
CT STARTS 0530 CST    SUNRISE 0554 CST    SUNSET 1810 CST    CT ENDS 1834 CST
 18 89 70 79 100/1933* 72/1901 47/1903 78/2018* 0.15 1.44/1943 0 14
CT STARTS 0530 CST    SUNRISE 0554 CST    SUNSET 1809 CST    CT ENDS 1833 CST
 19 89 70 79 99/1933* 70/1901 46/1901 77/2018 0.15 3.03/1932 0 14
CT STARTS 0531 CST    SUNRISE 0555 CST    SUNSET 1807 CST    CT ENDS 1831 CST
 20 88 70 79 100/1933 73/2020 47/1901 78/2005 0.15 2.87/1979 0 14
CT STARTS 0532 CST    SUNRISE 0555 CST    SUNSET 1806 CST    CT ENDS 1830 CST
 21 88 69 79 99/1921 71/1918 48/1899 78/1998 0.14 5.09/1909 0 14
CT STARTS 0532 CST    SUNRISE 0556 CST    SUNSET 1805 CST    CT ENDS 1829 CST
 22 88 69 78 97/1934* 70/1975 45/1918* 79/2006 0.15 1.47/1946 0 13
CT STARTS 0533 CST    SUNRISE 0557 CST    SUNSET 1804 CST    CT ENDS 1828 CST
 23 88 69 78 98/1921* 75/1975 45/1918 78/2006 0.15 2.95/2005 0 13
CT STARTS 0533 CST    SUNRISE 0557 CST    SUNSET 1802 CST    CT ENDS 1826 CST
 24 88 68 78 97/1931 74/2002 47/1897 76/2018* 0.15 3.30/2005 0 13
CT STARTS 0534 CST    SUNRISE 0558 CST    SUNSET 1801 CST    CT ENDS 1825 CST
 25 87 68 78 97/1921* 71/1926 52/1928* 80/2005 0.15 1.76/2018 0 13
CT STARTS 0534 CST    SUNRISE 0558 CST    SUNSET 1800 CST    CT ENDS 1824 CST
 26 87 68 77 97/1931 65/2000 43/1899 78/2005 0.15 2.17/1957 0 12
CT STARTS 0535 CST    SUNRISE 0559 CST    SUNSET 1759 CST    CT ENDS 1823 CST
 27 87 67 77 95/2023* 66/1942 42/1899 80/2005 0.14 4.67/1913 0 12
CT STARTS 0535 CST    SUNRISE 0559 CST    SUNSET 1757 CST    CT ENDS 1821 CST
 28 87 67 77 96/1933 62/1896 41/1896 77/1998 0.14 3.66/1976 0 12
CT STARTS 0536 CST    SUNRISE 0600 CST    SUNSET 1756 CST    CT ENDS 1820 CST
 29 86 67 77 95/1953* 69/1967* 42/1896 75/1998* 0.14 2.27/1905 0 12
CT STARTS 0537 CST    SUNRISE 0601 CST    SUNSET 1755 CST    CT ENDS 1819 CST
 30 86 66 76 97/1928 71/1984 45/1967* 76/1927 0.15 4.10/1898 0 11
CT STARTS 0537 CST    SUNRISE 0601 CST    SUNSET 1754 CST    CT ENDS 1818 CST
 MON 89.0 70.4 79.7         5.02   0 441

                                                       

OTHER MONTHLY MEANS
# DAYS WITH  MAX >=90F MAX <=32F MIN <=32F MIN <=0F
  16 0 0 0
# DAYS PRECIP >=0.01" >=0.10" >=0.50" >=1.00"
  9 6 3 2

 

Note: Daily sums/averages will not equal monthly sums/averages due to rounding - click here for more info

 

 Normals are for the 30-year period from 1991-2020

Extremes (or records) are for the period of record (1893-2024) 

 

 Bold colored records indicate extreme for the month

Italicized bold colored records indicate most recent of multiple monthly extreme occurrences 

 
* Asterisks indicate records which tied previous records; asterisked value was the last year record occurred
 
 All times are approximate and in Central Standard Time - add one hour during Daylight Saving Time

CT stands for Civil Twilight, essentially times of dawn & dusk - see definitions here