January Normals
(1961-1990)
Day Temperature Degree Days Precipitation Sunrise Sunset
Max Min Average Heating Cooling
1 24 7 15 50 0 .03 739 438
2 23 6 15 50 0 .03 739 439
3 23 6 15 50 0 .03 739 440
4 23 6 15 50 0 .03 739 441
5 23 6 15 50 0 .03 739 442
 
6 23 6 14 51 0 .03 739 443
7 23 5 14 51 0 .03 739 444
8 23 5 14 51 0 .03 739 445
9 23 5 14 51 0 .03 739 446
10 23 5 14 51 0 .03 738 447
 
11 23 5 14 51 0 .03 738 448
12 23 5 14 51 0 .03 738 449
13 23 5 14 51 0 .03 737 451
14 23 5 14 51 0 .03 737 452
15 23 5 14 51 0 .03 736 453
 
16 23 5 14 51 0 .03 736 454
17 23 5 14 51 0 .03 735 455
18 23 5 14 51 0 .03 735 457
19 23 5 14 51 0 .03 734 458
20 23 5 14 51 0 .03 733 459
 
21 23 5 14 51 0 .03 733 501
22 24 5 14 51 0 .03 732 502
23 24 5 14 51 0 .03 731 503
24 24 5 14 51 0 .03 730 504
25 24 5 14 51 0 .03 729 506
 
26 24 5 14 51 0 .03 729 507
27 24 5 14 51 0 .03 728 508
28 25 5 15 50 0 .03 727 510
29 25 5 15 50 0 .03 726 511
30 25 5 15 50 0 .03 725 513
 
31 25 6 16 49 0 .03 724 514
Monthly 23.5 5.3 14.4 1569 0 0.93  

February Normals
(1961-1990)

Day Temperature Degree Days Precipitation Sunrise Sunset
Max Min Average Heating Cooling
1 25 6 16 49 0 .03 723 515
2 26 6 16 49 0 .03 721 517
3 26 6 16 49 0 .03 720 518
4 26 7 16 49 0 .03 719 519
5 27 7 17 48 0 .03 718 521
 
6 27 7 17 48 0 .03 717 522
7 27 7 17 48 0 .03 715 524
8 27 8 18 47 0 .03 714 525
9 28 8 18 47 0 .03 713 526
10 28 8 18 47 0 .03 711 528
 
11 28 9 18 47 0 .03 710 529
12 29 9 19 46 0 .03 709 530
13 29 9 19 46 0 .03 707 532
14 29 9 19 46 0 .03 706 533
15 30 10 20 45 0 .03 704 535
 
16 30 10 20 45 0 .03 703 536
17 30 11 21 44 0 .03 702 537
18 31 11 21 44 0 .03 700 539
19 31 11 21 44 0 .03 659 540
20 31 12 22 43 0 .03 657 541
 
21 32 12 22 43 0 .03 655 543
22 32 13 22 43 0 .03 654 544
23 32 13 23 42 0 .04 652 545
24 33 14 23 42 0 .04 651 547
25 33 14 24 41 0 .04 649 548
 
26 34 15 24 41 0 .04 647 549
27 34 15 25 40 0 .04 646 551
28 34 16 25 40 0 .04 644 552
29 34 16 25 40 0 .04 643 553
Monthly 29.6 10.1 19.9 1263 0 0.90  


March Normals
(1961-1990)

Day Temperature Degree Days Precipitation Sunrise Sunset
Max Min Average Heating Cooling
1 35 16 26 39 0 .04 642 553
2 35 17 26 39 0 .05 641 554
3 36 17 27 38 0 .05 639 556
4 36 18 27 38 0 .05 637 557
5 37 18 27 38 0 .05 636 558
 
6 37 19 28 37 0 .05 634 600
7 38 19 28 37 0 .05 632 601
8 38 20 29 36 0 .05 630 602
9 38 20 29 36 0 .05 629 603
10 39 21 30 35 0 .06 627 605
 
11 39 21 30 35 0 .06 625 606
12 40 22 31 34 0 .06 623 607
13 40 22 31 34 0 .06 621 608
14 41 23 32 33 0 .06 620 610
15 41 23 32 33 0 .06 618 611
 
16 42 24 33 32 0 .06 616 612
17 42 24 33 32 0 .07 614 613
18 43 25 34 31 0 .07 612 615
19 43 25 34 31 0 .07 611 616
20 44 26 35 30 0 .07 609 617
 
21 45 26 35 30 0 .07 607 618
22 45 27 36 29 0 .07 605 619
23 46 27 36 29 0 .07 603 621
24 46 27 37 28 0 .07 602 622
25 47 28 37 28 0 .08 600 623
 
26 47 28 38 27 0 .08 558 624
27 48 29 38 27 0 .08 556 626
28 48 29 39 26 0 .08 554 627
29 49 30 39 26 0 .08 553 628
30 50 30 40 25 0 .08 551 629
 
31 50 31 40 25 0 .08 549 630
Monthly 42.1 23.6 32.8 998 0 1.98  

April Normals
(1961-1990)

Day Temperature Degree Days Precipitation Sunrise Sunset
Max Min Average Heating Cooling
1 51 31 41 24 0 .08 547 632
2 51 31 41 24 0 .09 545 633
3 52 32 42 23 0 .09 544 634
4 53 32 42 23 0 .09 542 635
5 53 33 43 22 0 .09 540 636
 
6 54 33 43 22 0 .09 538 638
7 54 34 44 21 0 .09 536 639
8 55 34 45 21 0 .09 535 640
9 55 34 45 20 0 .09 533 641
10 56 35 45 20 0 .09 531 642
 
11 56 35 46 19 0 .09 529 644
12 57 36 46 19 0 .10 528 645
13 58 36 47 18 0 .10 526 646
14 58 37 47 18 0 .10 524 647
15 59 37 48 17 0 .10 523 648
 
16 59 37 48 17 0 .10 521 650
17 60 38 49 16 0 .10 519 651
18 60 38 49 16 0 .10 518 652
19 60 38 49 16 0 .10 516 653
20 61 39 50 15 0 .10 514 654
 
21 61 39 50 15 0 .10 513 656
22 62 40 51 14 0 .10 511 657
23 62 40 51 14 0 .10 509 658
24 63 40 52 13 0 .10 508 659
25 63 41 52 13 0 .10 506 700
 
26 64 41 52 13 0 .10 505 702
27 64 42 53 12 0 .10 503 703
28 64 42 53 12 0 .10 502 704
29 65 42 54 11 0 .10 500 705
30 65 43 54 11 0 .10 459 706
Monthly 58.5 37.0 47.7 519 0 2.88  

May Normals
(1961-1990)

Day Temperature Degree Days Precipitation Sunrise Sunset
Max Min Average Heating Cooling
1 66 43 54 11 0 .10 457 708
2 66 43 55 11 1 .10 456 709
3 66 44 55 11 1 .10 455 710
4 67 44 55 11 1 .10 453 711
5 67 44 56 10 1 .10 452 712
 
6 67 45 56 10 1 .10 450 713
7 68 45 56 10 1 .10 449 715
8 68 45 57 9 1 .10 448 716
9 69 46 57 9 1 .10 447 717
10 69 46 57 9 1 .10 445 718
 
11 69 47 58 8 1 .10 444 719
12 70 47 58 8 1 .10 443 720
13 70 47 59 7 1 .10 442 721
14 70 48 59 7 1 .10 441 722
15 71 48 59 7 1 .10 440 724
 
16 71 48 60 7 2 .10 439 725
17 71 49 60 7 2 .10 438 726
18 72 49 60 7 2 .10 437 727
19 72 49 61 6 2 .11 436 728
20 72 49 61 6 2 .11 435 729
 
21 73 50 61 6 2 .11 434 730
22 73 50 62 5 2 .11 433 731
23 73 50 62 5 2 .11 432 732
24 74 51 62 5 2 .11 431 733
25 74 51 63 4 2 .11 430 734
 
26 74 51 63 4 2 .11 430 735
27 75 52 63 4 2 .11 429 736
28 75 52 64 4 3 .11 428 737
29 75 52 64 4 3 .12 427 738
30 75 53 64 4 3 .12 427 738
 
31 76 53 64 4 3 .12 426 739
Monthly 70.9 48.1 59.5 220 50 3.26  

June Normals
(1961-1990)

Day Temperature Degree Days Precipitation Sunrise Sunset
Max Min Average Heating Cooling
1 76 53 65 3 3 .12 426 740
2 76 54 65 3 3 .12 425 741
3 77 54 65 3 3 .12 425 742
4 77 54 66 2 3 .13 424 742
5 77 54 66 2 3 .13 424 743
 
6 77 55 66 2 3 .13 424 744
7 78 55 66 2 3 .13 423 745
8 78 55 67 2 4 .13 423 745
9 78 55 67 2 4 .13 423 746
10 79 56 67 2 4 .13 422 746
 
11 79 56 67 2 4 .13 422 749
12 79 56 68 1 4 .13 422 748
13 79 57 68 1 4 .13 422 748
14 80 57 68 1 4 .13 422 748
15 80 57 68 1 4 .13 422 751
 
16 80 57 69 1 5 .13 422 749
17 80 58 69 1 5 .13 422 750
18 81 58 69 1 5 .13 422 750
19 81 58 69 1 5 .14 422 750
20 81 58 70 1 6 .14 422 751
 
21 81 59 70 1 6 .14 422 751
22 81 59 70 1 6 .13 423 751
23 82 59 71 0 6 .13 423 751
24 82 59 71 0 6 .13 423 751
25 82 59 71 0 6 .13 424 751
 
26 82 60 71 0 6 .13 424 751
27 82 60 71 0 6 .13 424 751
28 83 60 71 0 6 .13 425 751
29 83 60 72 0 7 .13 425 751
30 83 61 72 0 7 .13 426 751
Monthly 79.8 57.1 68.5 36 141 3.90  

July Normals
(1961-1990)

Day Temperature Degree Days Precipitation Sunrise Sunset
Max Min Average Heating Cooling
1 83 61 72 0 7 .13 426 751
2 84 61 73 0 8 .13 427 751
3 84 61 73 0 8 .13 427 750
4 84 61 73 0 8 .13 428 750
5 84 61 73 0 8 .13 428 750
 
6 84 61 73 0 8 .13 429 750
7 84 62 73 0 8 .13 430 749
8 84 62 73 0 8 .12 431 749
9 84 62 73 1 9 .12 431 749
10 84 62 73 1 9 .12 432 748
 
11 84 62 73 1 9 .12 433 748
12 84 62 73 1 9 .12 434 747
13 85 62 73 1 9 .12 434 746
14 85 62 73 1 9 .12 435 746
15 85 62 73 1 9 .12 436 745
 
16 85 63 74 0 9 .12 437 744
17 85 63 74 0 9 .12 438 744
18 85 63 74 0 9 .12 439 743
19 85 63 74 0 9 .12 440 742
20 85 63 74 0 9 .12 441 741
 
21 85 63 74 0 9 .12 442 740
22 85 63 74 0 9 .12 443 740
23 85 63 74 0 9 .12 444 739
24 85 63 74 0 9 .12 445 738
25 85 63 74 0 9 .12 446 737
 
26 85 63 74 0 9 .12 447 736
27 85 63 74 0 9 .12 448 735
28 85 63 74 0 9 .12 449 733
29 85 63 74 0 9 .12 450 732
30 84 63 74 0 9 .12 451 731
 
31 84 63 74 0 9 .12 452 730
Monthly 84.5 62.3 73.5 7 270 3.79  

August Normals
(1961-1990)
Day Temperature Degree Days Precipitation Sunrise Sunset
Max Min Average Heating Cooling
1 84 63 74 0 9 .12 453 729
2 84 62 73 0 8 .12 454 728
3 84 62 73 0 8 .12 455 726
4 84 62 73 0 8 .12 456 725
5 84 62 73 0 8 .12 457 724
 
6 84 62 73 0 8 .12 458 722
7 84 62 73 0 8 .12 500 721
8 83 62 73 0 8 .12 501 720
9 83 61 72 0 7 .12 502 718
10 83 61 72 0 7 .12 503 717
 
11 83 61 72 0 7 .12 504 715
12 83 61 72 0 7 .13 505 714
13 83 61 72 0 7 .13 506 713
14 82 61 72 0 7 .13 507 711
15 82 61 72 0 7 .13 509 710
 
16 82 60 71 0 6 .13 510 708
17 82 60 71 0 6 .13 511 706
18 81 60 70 1 6 .13 512 705
19 81 60 70 1 6 .13 513 703
20 81 59 70 1 6 .13 514 702
 
21 81 59 70 1 6 .13 515 700
22 81 59 70 1 6 .13 517 658
23 80 58 69 1 5 .13 518 657
24 80 58 69 1 5 .13 519 655
25 80 58 69 1 5 .13 520 653
 
26 79 58 69 1 5 .13 521 652
27 79 57 68 1 4 .13 522 650
28 79 57 68 1 4 .13 523 648
29 78 57 68 1 4 .13 524 647
30 78 57 67 2 4 .13 526 645
 
31 78 56 67 2 4 .13 527 643
Monthly 81.6 59.9 70.8 16 196 3.92  

September Normals
(1961-1990)
Day Temperature Degree Days Precipitation Sunrise Sunset
Max Min Average Heating Cooling
1 77 56 67 2 4 .13 528 641
2 77 56 66 2 3 .14 529 640
3 77 55 66 2 3 .14 530 638
4 76 55 65 2 3 .14 531 636
5 76 55 65 2 2 .14 532 634
 
6 76 54 65 2 2 .14 534 632
7 75 54 65 2 2 .14 535 631
8 75 54 64 3 2 .14 536 629
9 75 53 64 3 2 .14 537 627
10 74 53 64 3 2 .13 538 625
 
11 74 53 64 3 2 .13 539 623
12 74 53 63 3 1 .13 540 621
13 73 52 63 3 1 .13 541 620
14 73 52 62 4 1 .13 543 618
15 73 51 62 4 1 .13 544 616
 
16 72 51 62 4 1 .13 545 614
17 72 51 62 4 1 .13 546 612
18 72 50 61 5 1 .13 547 610
19 71 50 61 5 1 .13 548 609
20 71 50 60 5 0 .12 549 607
 
21 71 49 60 5 0 .12 551 605
22 70 49 59 6 0 .12 552 603
23 70 49 59 6 0 .12 553 601
24 69 48 59 6 0 .12 554 559
25 69 48 58 7 0 .11 555 557
 
26 69 48 58 7 0 .11 556 556
27 68 47 58 7 0 .11 557 554
28 68 47 57 8 0 .11 559 552
29 68 47 57 8 0 .10 600 550
30 67 46 57 8 0 .10 601 548
Monthly 72.4 51.2 61.8 131 35 3.79  

October Normals
(1961-1990)

Day Temperature Degree Days Precipitation Sunrise Sunset
Max Min Average Heating Cooling
1 67 46 56 9 0 .10 602 547
2 67 45 56 9 0 .10 603 545
3 66 45 55 10 0 .09 605 543
4 66 45 55 10 0 .09 606 541
5 65 44 55 10 0 .09 607 539
 
6 65 44 54 11 0 .08 608 538
7 65 44 54 11 0 .08 609 536
8 64 43 54 12 0 .08 610 534
9 64 43 53 12 0 .08 612 532
10 63 42 53 12 0 .08 613 530
 
11 63 42 52 13 0 .07 614 529
12 62 42 52 13 0 .07 615 527
13 62 41 52 14 0 .07 617 525
14 61 41 51 14 0 .07 618 524
15 61 41 51 14 0 .07 619 522
 
16 60 40 50 15 0 .07 620 520
17 60 40 50 15 0 .07 622 519
18 60 39 49 16 0 .06 623 517
19 59 39 49 16 0 .06 624 515
20 59 39 49 17 0 .06 625 514
 
21 58 38 48 17 0 .06 627 512
22 57 38 48 17 0 .06 628 511
23 57 38 47 18 0 .06 629 509
24 56 37 47 18 0 .06 630 507
25 56 37 46 19 0 .06 632 506
 
26 55 36 46 19 0 .06 633 504
27 55 36 45 20 0 .06 634 503
28 54 36 45 20 0 .06 636 501
29 54 35 45 21 0 .06 637 500
30 53 35 44 21 0 .06 638 459
 
31 52 35 44 21 0 .06 639 457
Monthly 60.2 40.2 50.2 464 0 2.20  

November Normals
(1961-1990)
Day Temperature Degree Days Precipitation Sunrise Sunset
Max Min Average Heating Cooling
1 52 34 43 22 0 .06 641 456
2 51 34 43 22 0 .06 642 455
3 51 33 42 23 0 .06 643 453
4 50 33 42 23 0 .06 645 452
5 50 33 41 24 0 .06 646 451
 
6 49 32 41 24 0 .06 647 449
7 48 32 40 25 0 .06 649 448
8 48 31 40 25 0 .06 650 447
9 47 31 39 26 0 .06 651 446
10 47 31 39 26 0 .06 653 445
 
11 46 30 38 27 0 .06 654 444
12 45 30 38 27 0 .06 655 443
13 45 29 37 28 0 .06 657 441
14 44 29 36 29 0 .06 658 440
15 44 28 36 29 0 .06 659 439
 
16 43 28 35 30 0 .06 701 439
17 42 27 35 30 0 .06 702 438
18 42 27 34 31 0 .06 703 437
19 41 26 34 31 0 .06 704 436
20 41 26 33 32 0 .06 706 435
 
21 40 25 33 32 0 .06 707 434
22 40 25 32 33 0 .06 708 434
23 39 24 32 33 0 .06 710 433
24 38 24 31 34 0 .05 711 432
25 38 23 30 35 0 .05 712 432
 
26 37 22 30 35 0 .05 713 431
27 37 22 29 36 0 .05 714 431
28 36 21 29 36 0 .05 716 430
29 36 21 28 37 0 .05 717 430
30 35 20 28 37 0 .05 718 429
Monthly 43.4 27.7 35.6 882 0 1.73  

December Normals
(1961-1990)

Day Temperature Degree Days Precipitation Sunrise Sunset
Max Min Average Heating Cooling
1 34 20 27 38 0 .05 719 429
2 34 19 27 38 0 .05 720 428
3 33 18 26 39 0 .05 721 428
4 33 18 25 40 0 .05 722 428
5 32 17 25 40 0 .05 723 428
                 
6 32 17 24 41 0 .05 724 428
7 31 16 24 41 0 .05 725 427
8 30 16 23 42 0 .05 726 427
9 30 15 23 42 0 .04 727 427
10 30 15 22 43 0 .04 728 427
 
11 30 14 22 43 0 .04 729 427
12 29 14 21 44 0 .04 730 427
13 29 13 21 44 0 .04 731 428
14 28 13 21 44 0 .04 731 428
15 28 13 20 45 0 .04 732 428
 
16 28 12 20 45 0 .04 733 428
17 27 12 19 46 0 .04 734 429
18 27 11 19 46 0 .04 734 429
19 27 11 19 46 0 .04 735 429
20 26 10 18 47 0 .04 735 430
 
21 26 10 18 47 0 .04 736 430
22 26 10 18 47 0 .04 737 431
23 25 9 17 48 0 .04 737 431
24 25 9 17 48 0 .04 737 432
25 25 9 17 48 0 .04 738 432
 
26 25 8 17 48 0 .04 738 433
27 24 8 16 49 0 .03 738 434
28 24 8 16 49 0 .03 739 434
29 24 8 16 49 0 .03 739 435
30 24 7 16 49 0 .03 739 436
 
31 24 7 15 50 0 .03 739 437
Monthly 28.1 12.5 20.3 1386 0 1.27  


 

Miscellaneous Normals
(1961-90)

Mean number of days:

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Cloud Cover from Sunrise to Sunset:
Clear 7.4 7.9 7.4 6.8 6.9 7.3 9.8 9.5 9.1 10.8 5.8 6.8 95.4
Partly Cloudy 6.9 7.1 7.1 7.1 9.1 10.4 10.9 10.6 8.9 6.9 6.1 5.8 96.8
Cloudy 16.7 13.2 16.5 16.1 15.0 12.3 10.4 10.9 11.9 13.4 18.1 18.5 173.0
Precipitation .01 inches or more
  8.2 7.0 9.8 10.3 11.1 10.8 10.1 9.8 9.7 8.0 8.2 8.8 111.9
Snow 1 inch or more
  3.2 2.4 2.6 0.5 0 0 0 0 0 0.1 1.3 3.0 12.9
Thunderstorms
  0.1 0.2 1.3 3.1 5.5 7.7 7.6 7.1 4.7 2.1 0.6 0.2 40.1
Temperature Maximum
90 or above 0 0 0 0.1 0.8 3.7 6.7 4.5 1.2 0 0 0 17.0
32 or below 22.1 15.5 6.5 0.2 0 0 0 0 0 0 5.1 18.2 67.6
Temperature Minimum
32 or below 30.6 27.2 25.5 9.6 0.7 0 0 0 0.3 6.1 21.3 29.4 150.9
0 or below 11.4 7.2 1.2 0 0 0 0 0 0 0 0.3 5.6 25.8
 
Degree Days (base 65 F)
Heating 1569 1263 998 519 220 36 7 16 131 464 882 1386 7491
Cooling 0 0 0 0 50 141 270 196 35 0 0 0 692
Wind in m.p.h.
Mean speed 8.7 8.6 9.3 10.4 9.4 8.4 7.6 7.5 8.2 9.3 9.8 8.9 8.8
Mean
direction
S NW NW NW S S S S S S S S S

 


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