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

 


Calendar Day Number (Leap Years add one day for March 1-December 31)

Day

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

Day

1

001

032

060

091

121

152

182

213

244

274

305

335

1

2

002

033

061

092

122

153

183

214

245

275

306

336

2

3

003

034

062

093

123

154

184

215

246

276

307

337

3

4

004

035

063

094

124

155

185

216

247

277

308

338

4

5

005

036

064

095

125

156

186

217

248

278

309

339

5

6

006

037

065

096

126

157

187

218

249

279

310

340

6

7

007

038

066

097

127

158

188

219

250

280

311

341

7

8

008

039

067

098

128

159

189

220

251

281

312

342

8

9

009

040

068

099

129

160

190

221

252

282

313

343

9

10

010

041

069

100

130

161

191

222

253

283

314

344

10

11

011

042

070

101

131

162

192

223

254

284

315

345

11

12

012

043

071

102

132

163

193

224

255

285

316

346

12

13

013

044

072

103

133

164

194

225

256

286

317

347

13

14

014

045

073

104

134

165

195

226

257

287

318

348

14

15

015

046

074

105

135

166

196

227

258

288

319

349

15

16

016

047

075

106

136

167

197

228

259

289

320

350

16

17

017

048

076

107

137

168

198

229

260

290

321

351

17

18

018

049

077

108

138

169

199

230

261

291

322

352

18

19

019

050

078

109

139

170

200

231

262

292

323

353

19

20

020

051

079

110

140

171

201

232

263

293

324

354

20

21

021

052

080

111

141

172

202

233

264

294

325

355

21

22

022

053

081

112

142

173

203

234

265

295

326

356

22

23

023

054

082

113

143

174

204

235

266

296

327

357

23

24

024

055

083

114

144

175

205

236

267

297

328

358

24

25

025

056

084

115

145

176

206

237

268

298

329

359

25

26

026

057

085

116

146

177

207

238

269

299

330

360

26

27

027

058

086

117

147

178

208

239

270

300

331

361

27

28

028

059

087

118

148

179

209

240

271

301

332

362

28

29

029

088

119

149

180

210

241

272

302

333

363

29

30

030

089

120

150

181

211

242

273

303

334

364

30

31

031

090

151

212

243

304

365

31

Day

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

DAY


Leap years from 1880 through 2012

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

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.

 

ORDINAL DAY OF YEAR (DOY) CALENDAR
*Add 1 to unshaded values during leap years.

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


 

UNL
University of Nebraska-Lincoln
Applied Climate Sciences Group