Lincoln-last-90F-climatology

The standard 30-year normal (average) is September 18, Calendar Day 261.
The 124 year normal (average) is September 19, Calendar Day 262.
The average for the last 10 years, 2001-2010 is September 19 Calendar Day 262.

Year 2010, October 8, Calendar Day 281

Climatology of Lincoln's Last 90 degree or higher temperature -
Ranked from earliest to latest (1887-2010)

Year	Month	Day	Day #		Year	Month	Day	Day #
1996	Aug	6	219	LY	1970	Sep	20	263
1944	Aug	16	229	LY	1941	Sep	20	263
1966	Aug	17	229		1949	Sep	20	263
1902	Aug	17	229		1988	Sep	21	265	LY
1982	Aug	19	231		1980	Sep	21	265	LY
2009	Aug	24	236		1895	Sep	21	264
1903	Aug	24	236		1936	Sep	22	266	LY
1986	Aug	25	237		1937	Sep	22	265
1977	Aug	26	238		1908	Sep	22	266	LY
1965	Aug	26	238		1930	Sep	22	265
1967	Aug	29	241		1984	Sep	23	267	LY
1973	Aug	30	242		1891	Sep	23	266
1951	Aug	30	242		1927	Sep	23	266
1924	Aug	30	243	LY	1945	Sep	23	266
1989	Aug	31	243		1935	Sep	23	266
2008	Sep	1	245	LY	1905	Sep	24	267
1957	Sep	1	244		1920	Sep	25	269	LY
1950	Sep	1	244		1904	Sep	25	269	LY
1968	Sep	2	246	LY	1933	Sep	25	268
1889	Sep	3	246		1990	Sep	26	269
1929	Sep	3	246		1974	Sep	26	269
1923	Sep	4	247		1946	Sep	26	269
1987	Sep	4	247		1998	Sep	26	269
1917	Sep	5	248		1894	Sep	27	270
1943	Sep	5	248		1983	Sep	27	270
1914	Sep	5	248		1892	Sep	27	271	LY
2001	Sep	5	248		1898	Sep	28	271
1901	Sep	6	249		1939	Sep	28	271
1999	Sep	7	250		1956	Sep	28	272	LY
1913	Sep	7	250		1911	Sep	28	271
1960	Sep	7	251	LY	1981	Sep	29	272
1896	Sep	8	252	LY	1922	Sep	29	272
1959	Sep	8	251		1979	Sep	29	272
1900	Sep	9	252		1971	Sep	29	272
1912	Sep	9	253	LY	1994	Sep	30	273
1964	Sep	9	253	LY	1952	Sep	30	274	LY
1958	Sep	9	252		1942	Sep	30	273
1906	Sep	10	253		1976	Oct	1	275	LY
1961	Sep	10	253		2002	Oct	1	274
1888	Sep	10	254	LY	2000	Oct	1	275	LY
1978	Sep	11	254		1953	Oct	2	275
1993	Sep	12	255		2006	Oct	3	276
1962	Sep	12	255		1969	Oct	3	276
1887	Sep	12	255		1909	Oct	3	276
1915	Sep	13	256		1916	Oct	3	277	LY
1991	Sep	13	256		1918	Oct	4	277
1992	Sep	16	260	LY	2005	Oct	4	277
1926	Sep	16	259		1997	Oct	6	279
1919	Sep	16	259		2010	Oct	8	281
2007	Sep	17	260		1893	Oct	8	281
1955	Sep	17	260		1934	Oct	8	281
1890	Sep	17	260		1921	Oct	9	282
2003	Sep	17	260		1928	Oct	10	284	LY
1910	Sep	17	260		1931	Oct	10	283
1932	Sep	18	262		1963	Oct	10	283
1985	Sep	18	261	LY	1940	Oct	12	286	LY
1954	Sep	18	261		1899	Oct	12	285
1925	Sep	19	262		1995	Oct	12	285
2004	Sep	19	263		1975	Oct	13	286
1907	Sep	19	262	LY	1897	Oct	14	287
1948	Sep	19	263	LY	1938	Oct	15	288
1972	Sep	19	263	LY	1947	Oct	20	293

NOTE: LY = Leap Year.
For example, September 9, 1958 is Calendar day 252
but, September 9, 1964 is in a leap year, it was day 253.

Climatology of Lincoln's Last 90 degree or higher temperature - By Year, 1887-2010

year	month	day	day #	LY	year	month	day	day #	LY
1887	Sep	12	255		1949	Sep	20	263
1888	Sep	10	254	LY	1950	Sep	1	244
1889	Sep	3	246		1951	Aug	30	242
1890	Sep	17	260		1952	Sep	30	274	LY
1891	Sep	23	266		1953	Oct	2	275
1892	Sep	27	271	LY	1954	Sep	18	261
1893	Oct	8	281		1955	Sep	17	260
1894	Sep	27	270		1956	Sep	28	272	LY
1895	Sep	21	264		1957	Sep	1	244
1896	Sep	8	252	LY	1958	Sep	9	252
1897	Oct	14	287		1959	Sep	8	251
1898	Sep	28	271		1960	Sep	7	251	LY
1899	Oct	12	285		1961	Sep	10	253
1900	Sep	9	253		1962	Sep	12	255
1901	Sep	6	249		1963	Oct	10	283
1902	Aug	17	229		1964	Sep	9	253	LY
1903	Aug	24	236		1965	Aug	26	238
1904	Sep	25	269	LY	1966	Aug	17	229
1905	Sep	24	267		1967	Aug	29	241
1906	Sep	10	253		1968	Sep	2	246	LY
1907	Sep	19	262		1969	Oct	3	276
1908	Sep	22	266	LY	1970	Sep	20	263
1909	Oct	3	276		1971	Sep	29	272
1910	Sep	17	260		1972	Sep	19	263	LY
1911	Sep	28	271		1973	Aug	30	242
1912	Sep	9	253	LY	1974	Sep	26	269
1913	Sep	7	250		1975	Oct	13	286
1914	Sep	5	248		1976	Oct	1	275	LY
1915	Sep	13	256		1977	Aug	26	238
1916	Oct	3	277	LY	1978	Sep	11	254
1917	Sep	5	248		1979	Sep	29	272
1918	Oct	4	277		1980	Sep	21	265	LY
1919	Sep	16	259		1981	Sep	29	272
1920	Sep	25	269	LY	1982	Aug	19	231
1921	Oct	9	282		1983	Sep	27	270
1922	Sep	29	272		1984	Sep	23	267	LY
1923	Sep	4	247		1985	Sep	18	261
1924	Aug	30	243	LY	1986	Aug	25	237
1925	Sep	19	262		1987	Sep	4	247
1926	Sep	16	259		1988	Sep	21	265	LY
1927	Sep	23	266		1989	Aug	31	243
1928	Oct	10	284	LY	1990	Sep	26	269
1929	Sep	3	246		1991	Sep	13	256
1930	Sep	22	265		1992	Sep	16	260	LY
1931	Oct	10	283		1993	Sep	12	255
1932	Sep	18	262	LY	1994	Sep	30	273
1933	Sep	25	268		1995	Oct	12	285
1934	Oct	8	281		1996	Aug	6	219	LY
1935	Sep	23	266		1997	Oct	6	279
1936	Sep	22	266	LY	1998	Sep	26	269
1937	Sep	22	265		1999	Sep	7	250
1938	Oct	15	288		2000	Oct	1	275	LY
1939	Sep	28	271		2001	Sep	5	248
1940	Oct	12	286	LY	2002	Oct	1	274
1941	Sep	20	263		2003	Sep	17	260
1942	Sep	30	273		2004	Sep	19	263	LY
1943	Sep	5	248		2005	Oct	4	277
1944	Aug	16	229	LY	2006	Oct	3	276
1945	Sep	23	266		2007	Sep	17	260
1946	Sep	26	269		2008	Sep	1	245	LY
1947	Oct	20	293		2009	Aug	24	236
1948	Sep	19	263	LY	2010	Oct	8	281

Leap years are years with 366 days, instead of the usual 365. Leap years are necessary because the actual length of a year is 365.242 days, not 365 days, as commonly stated. Basically, leap years occur every 4 years, and years that are evenly divisible by 4 (2004, for example) have 366 days. This extra day is added to the calendar on February 29th.

However, there is one exception to the leap year rule involving century years, like the year 1900. Since the year is slightly less than 365.25 days long, adding an extra day every 4 years results in about 3 extra days being added over a period of 400 years. For this reason, only 1 out of every 4 century years is considered as a leap year. Century years are only considered as leap years if they are evenly divisible by 400. Therefore, 1700, 1800, 1900 were not leap years, and 2100 will not be a leap year. But 1600 and 2000 were leap years, because those year numbers are evenly divisible by 400.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1	1	32	60	91	121	152	182	213	244	274	305	335
2	2	33	61	92	122	153	183	214	245	275	306	336
3	3	34	62	93	123	154	184	215	246	276	307	337
4	4	35	63	94	124	155	185	216	247	277	308	338
5	5	36	64	95	125	156	186	217	248	278	309	339
6	6	37	65	96	126	157	187	218	249	279	310	340
7	7	38	66	97	127	158	188	219	250	280	311	341
8	8	39	67	98	128	159	189	220	251	281	312	342
9	9	40	68	99	129	160	190	221	252	282	313	343
10	10	41	69	100	130	161	191	222	253	283	314	344
11	11	42	70	101	131	162	192	223	254	284	315	345
12	12	43	71	102	132	163	193	224	255	285	316	346
13	13	44	72	103	133	164	194	225	256	286	317	347
14	14	45	73	104	134	165	195	226	257	287	318	348
15	15	46	74	105	135	166	196	227	258	288	319	349
16	16	47	75	106	136	167	197	228	259	289	320	350
17	17	48	76	107	137	168	198	229	260	290	321	351
18	18	49	77	108	138	169	199	230	261	291	322	352
19	19	50	78	109	139	170	200	231	262	292	323	353
20	20	51	79	110	140	171	201	232	263	293	324	354
21	21	52	80	111	141	172	202	233	264	294	325	355
22	22	53	81	112	142	173	203	234	265	295	326	356
23	23	54	82	113	143	174	204	235	266	296	327	357
24	24	55	83	114	144	175	205	236	267	297	328	358
25	25	56	84	115	145	176	206	237	268	298	329	359
26	26	57	85	116	146	177	207	238	269	299	330	360
27	27	58	86	117	147	178	208	239	270	300	331	361
28	28	59	87	118	148	179	209	240	271	301	332	362
29	29	60	88	119	149	180	210	241	272	302	333	363
30	30		89	120	150	181	211	242	273	303	334	364
31	31		90		151		212	243		304		365

1880	1884	1888	1892	1896	1904
1908	1912	1916	1920	1924	1928
1932	1936	1940	1944	1948	1952
1956	1960	1964	1968	1972	1976
1980	1984	1988	1992	1996	2000
2004	2008	2012