DEC/1999 41.52 LAT 70.66 LONG
Pyranometer No. EPPLEY 27706
DAY DAYNO SORADM SORADC AT NOONALT TMAX TMIN DD65 DD60 PRECIP
watt-hr/m**2 deg degF degF deg days inches
1 335 1467. 3761. .390 26.8 37 26 33.5 28.5 .00
2 336 2643. 3733. .708 26.6 47 28 27.5 22.5 .00
3 337 1688. 3706. .455 26.5 53 38 19.5 14.5 .00
4 338 987. 3681. .268 26.3 55 35 20.0 15.0 .00
5 339 2210. 3657. .604 26.2 59 39 16.0 11.0 .03
6 340 386. 3635. .106 26.0 62 49 9.5 4.5 4.50
7 341 432. 3614. .120 25.9 53 35 21.0 16.0 .12
8 342 2537. 3594. .706 25.8 48 26 28.0 23.0 .00
9 343 2208. 3575. .618 25.7 48 30 26.0 21.0 .00
10 344 1496. 3558. .420 25.6 58 36 18.0 13.0 .00
11 345 2359. 3543. .666 25.5 44 34 26.0 21.0 .00
12 346 2427. 3528. .688 25.4 46 25 29.5 24.5 .00
13 347 1985. 3515. .565 25.4 52 27 25.5 20.5 .20
14 348 309. 3503. .088 25.3 45 38 23.5 18.5 .39
15 349 239. 3493. .068 25.2 53 42 17.5 12.5 .07
16 350 1388. 3484. .398 25.2 56 36 19.0 14.0 .00
17 351 2380. 3477. .685 25.1 45 32 26.5 21.5 .00
18 352 2319. 3471. .668 25.1 40 24 33.0 28.0 .00
19 353 2015. 3466. .581 25.1 41 25 32.0 27.0 .00
20 354 1631. 3463. .471 25.1 60 34 18.0 13.0 .06
21 355 1883. 3461. .544 25.0 55 34 20.5 15.5 .00
22 356 833. 3461. .241 25.0 40 24 33.0 28.0 .00
23 357 2127. 3462. .614 25.0 46 26 29.0 24.0 .00
24 358 1930. 3464. .557 25.1 16 12 51.0 46.0 .00
25 359 2480. 3468. .715 25.1 38 14 39.0 34.0 .00
26 360 750. 3473. .216 25.1 45 20 32.5 27.5 .00
27 361 2122. 3480. .610 25.1 35 18 38.5 33.5 .00
28 362 2366. 3488. .678 25.2 34 19 38.5 33.5 .00
29 363 2274. 3497. .650 25.2 46 27 28.5 23.5 .00
30 364 2282. 3508. .651 25.3 40 20 35.0 30.0 .00
31 365 530. 3520. .151 25.3 40 20 35.0 30.0 .00
TOTALS 52683.109739. 850.0 695.0 5.37
MEANS 1699. 3540. .480 46.4 28.8 27.4 22.4 .17
37.6
Location of solar radiation station is CLARK BLDG WOODS HOLE MA
Location of Tmax,Tmin,rain station is LONG POND FALMOUTH MA
Warm, wet, sunny month. Air temp 2.8 degF above, precip 25%
higher than, solar rad 14% above long term mean.
Annual averages
Air temp: 40 years of records.
1999 was 3.1 degF above 40 year mean
During the last 10 years, 3 years were within 1 degF of the
previous 30 years mean, 7 were more than 1 degF above it.
Precip - 33 years of records
1999 was 0.6 % above 33 years mean
Solar rad - 25 years of records
1999 was 9.3% above 25 year mean
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