8 Table 1.- Surface Water 
Means and 
Years | January February March April May June July 
Temp. Sal. Temp. Sal. Temp. Sal. Temp. Sal. Temp. Sal. Temp. Sal. Temp. Sal. 
°"F | %e °F %o °F %o °F %o °F %o °F Yoo °F ae 
PORTLAND, 
1934-1938 33.4 29.9 B238 29.0 Bh 4/ Ze 40.7 26.5 47.6 W 8 Die 28.8 60 2 30.3 
1929=19);3 | 3585 30.7 31.0 30.6 3352 29°54 39.0) 2702) W7e) 2768 54.3 20d Ole ame One 
LOLE—V9LS | 3068 30.2 30.4) 30.0 23407 27.7 40. 27.8 Lek 20.5 55.2)  2iommoOne neon 
1956 co ee ee | ee ee 
1957 33.4 30.6 34.7 30.6 37.2 29.7 42.0) 30.V 49.5 31.0 57.5 30.7) 5009 molnem 
1958 36.3 26.2 (Bh 2954) 37) 28.0 12.3 26.4 hB.k 26.7 52.6) 280 on Omen 
Mean 3330 30.1 132.0 29.9 (93466) 29.0 HOLY 12831 A766. 28eh Sh. 7 205 mS Onemme Ome 
Maximum 42. 32.9 38 B35 201.2 WOE 5© 3280) 355 Beige loyh B52 66 34,20 
MeaniMax, |) 36.0 (3004) 34.0, 3154 37-58 30.8. A4cd) 30.3 5250 13056 59.0 Bi 2 coe: 
Mean Min. ———s PSY eon 2a B256 DAS) 36.7 23.9 43.8 Ph aL Fila 26 iL Bog 3} 2746 
Minimum 28 W258} QS Bese) 10) Whsak 32 En OM © ale One Lae MEG. 5) 17.5 
PORTSMOUTH, 
LOM LOLS | Shel 30.6 3259 30.39 36.0 2652 L507 26.0 48.0 26.0) 54.09 27225 Oo 
TOU9=1953)| 370 27.7 35-5 26.5 36.8 25°55 43.2° 23.0 AG.k. 27.15 55.5 . 25.9) COs mes Oern 
1954 36.0 29.8 934.8 28.5) 38.0 25.62 4365 2h6G 49.7, 1953) 956.0" 20.5 bee cmmeoee 
1955 326.5 2768 34-6 28.5 36.5 26.0 1361 2640 48.7 26.7 56.3 2605: sCOnCmmBOne 
1956 36.5 25.9° 325.6 29.0 35.3 28.5 39.6 22.2 46.0 25.8 55.7 27.8 9 SSeqeOne 
1957 25 28.6 36.4 29.05 38.1 27.1 42.6 2737 51.6 2929 57.0: Sisle oe ROMmmeeeG 
1958 37.3 2762 3503 26.4 38.4 25.4 4365 22.5 h9.7 2h.2 53.0 29.0) Somme Ome 
Mean 35.9 28.8 34.6 28.4 36.7 26.0 42.4 24.66 4S. 26.0 55.0 2852 9 eon 
Maximum 42 33.8 40 Syhsaly © /hS} 32.3 50 30.8 56 Sha Gy (teyh, Bo eleemiog 32.4 
Mean Max. BOR: 31.8 36.8 Spl 5) 39.9 30.7 16.3 29.5 5335 29.8 60.7 30.8 64.7. 31.4 
Mean Min. | 33.1 24.6 32.2 23.9 33.9 19.3 39.1 17.8 hh.5 20.8 AQ Zhe bocce 
Minimum 29 15.8 30 Gas} SiO) 10.5 36 ys) | IH 9.9 h6 U7 5 SO 24.6 
BOSTON, 
192221923) 30hy 2968 310) (3022 935.2 27.8" bebe 2705 ~ 5257) 2787). 60.2) 28 cola oan 
192H=1928 || 3301) 2959 32.6 2925''36.4 2866 4259 28.5 5033 2826—- 57.9" 20.t ose Oe 
1929=1933)| 36.5 29.4 34.2 29.8 37.2 27-7 43.9 26.9. 51.9 29.0. 60.2) 29.4) epee One 
1931938 | 3403 2855 3266. 2923 36.3 27.0 Bh 2653) 5162 2852. 59.7 - 28.6) Oo nOmmeoers 
1939=1943'| 33.1 29.3 32.5, 29.5 36.1 26:7 43.7, 26.3 53.3 27.5 60.9 29.0 (Gsuonmone 
IGLA—VOLE | 3405 29.3 33.8 29.8 LOD 26.0 46.5 27.7 5.2 26.9 60.8 27.38 CoaOumeceO 
1949=1953'| 38.4 2858 3667. 2762 39.4. 25.5 AVL 2he7 55.1 26.0 62.15 28.6 67 Oem 
1954 B5s9 2920 936.6) 12650) NO. 275 9) 925.6 SoeS les OOLS. 25.5 ome 29.0 
1955 2569 27.7 35.0 “2767 (39556 26.9" 6.8 252.2 5630 26.3) G6 27. 7ocemeeo © 
1956 35. 2he2° 2666 25.8 36.6824.03° La 2063) 5059) 2556 60.5 27.2 osmomeeoeen 
1957 33.3 28.0 36.4 27.6 OL 25.4 47.9 2h. 95555 28.9) 6358 3008 cocoate 
1958 38.0 2.2 935-0 26.1 4085 21.53) 48.5 19.6 5ue2 2262 5855 2S. 9m no Sumo ee 
Mean B19. 28.9. 33.9 28.9 93707 26.7) Lhe -2653' 52.8 27638. GOLA 2eseeo imeem 
Maximum 45 Selly She} Brey Ths 31.8 58 SYN AIS (a8) ealaah. 4/0) BPO) G2 32.8 
Mean Max, | 36.2 30.8 36.6 30:8 49.8 20.2 49.6 29.8 58.50 29.9 -65.2 30.6 6Se apa 
Mean Min, | 32.8 2424 3103 24.7 33.8 20.6 4O.6: 20.6. 48.0 22.5- 55.9) 24085 Cleaners 
Minimum 28 WDE) QS O29 i264] Bz DEO fel 9.9 50 e257, 16.5 
*Qbservations for the year are incomplete; extremes are for the months shown. 
