18 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 ho °F oo °F ho oy ho °F ho °F ho °F So 
BREAKWATER 
Lhe3 28.0 4963 27.5 58.9 28.4 68.0 28.2 72ee 20m 
Mm 
e 
— 
NONGENGZ3 137.510 2605 8O6e) 2 
TOL7=1IGLS|| 3304 2602. 3353 29.5 -hll9 28.16" 5069 2752 59.0 27.8 69.9 28.25 2ee eee 
AGLG=1953)| 4229 27.8 VAIO 926.7 “Lied 2755 “5006 27-3 O10) 927.5) 6962. 27/On oem 
1954 38.7 2750. 10.0 29.3 43.3 28.) 52.1 28.2 60.1 28.1 6856 205) a7 Omen 
1955 38.0 28.0 °26.4 «2859 4365 28.6 51.4 28:4 59.9 28.8 == ==) 7ia7eeome 
1956 3356) 271 139.1 29a7 les 2720 kGok 2655" 5606. 2ieds nov elln 271 Onmu7l em me 
1957 36015 2722 13910 2752 W267 2725 56 2753) G2. 29-2 69.70 (30 enommetne 
1958 B73) 2707) 133502804 39.3 2762 50s 2468 5855 2heS 6522" 276 fe meonel 
Mean 39.3 2728 187.8 28s) Bek 2728 50.2 (2752 5965  2ie7 08.5)  2Osce eae eeoENA 
Maximum 50 BuO) 7 Bila youl BN 160 2205) 68 3058) 83 30 ee 32.8 
Mean Max. | 42.5 29.9 41.6 29.9 48.8\ 29.7 55.6 29.7 65.4 29.3. 7h.6 2958 7/7 eppeoOns 
Mean Mankil| 24.22 2520) 3369 2566 38.0 2453) A3eS 245k 53) 250 26256 250 69.6 2emil 
Minimum 28 20.6 29 AAO) syk Zi or 36 20.6 50 20.8 60 20.0 66 25.5 
PHILADELPHIA, 
1923 Bhe5. Och. 32.5. Ook 3627 O26 “49.6 O56 6053 O56 ‘7hc5: eee 
192h=1928 | 34.0 —0.2'°/35.2 0.2 LO.7  C.0 49°59 (0.3) GOR (O87 70.5) .On7 a OncmmmOa 
1929219331 38.2 067013723 007 2165 0.8 50.3> 0.8 62.8. 1.1 Fas el ONO mmr 
193H=1938 36.3 0.6 (35.2 (0.6 41.6 O57 52.2. O18) 6459 Leo 7he6e. sco memes 
193921913) 35.3 O52 13549 0.2 1hO07 O22) 50s 053) GAG 056; "74.6. 1.0. 7a oe Oe 
1OLE—19L61 3527. 90.0 37.3) O.0  4305° 70.0) 54.03.9053 Gh.2 Oso) FSG. 1 Oc eouemnOenn 
1954 = — — = =s5 == a oo a = — —— 7956) Ose 
1955 37.7 (0.0 37.4 (OF0' 43.5 0.0 Shak 0.0 66.4 O12 7308 > O76 =e eiemena 
1956 37.2) 0.0 3957 050 41.0)" 0.0) 1727 050) GI.9) “O.2> 7.2) 0. 2a 
1957 36.5. 0.0 Mcl O60 L5sh (0.0) 50.2 (O22) 6826. Ooh” 7767 = OsemcOncmmOne 
1958 27.0 0.0) 34.9. OO LSS (0.0 51.0 023) 159.0 1007 “7156 aS CRO mOnS, 
Mean 3620 0.3 3653, 053: L1s5. 023° 50.9 0c). 62°53" (O57- 73.6. 5 OnCmn Sc OmeeeS 
Maximum LW 13) 6 6s} SH? Ms) 5 IY YAS BN 1S) 26 90 252. 
Mean Max. | 39.6, ©.7 39.5 O.7 A7.4 . O.7 58.4 O09 69.5 © 253-7807. UiGan2e/ ey 
Mean Min. | 33.3% ©.0 33:7 ©.0 362) 0.0  H4s32 O60 56:8. 0.25 67.9. Osseo cOmmOee 
Minimum 30 0.0 30 0.0 33 OO 3 OOn 47, OKO: Gul 0.0 68 0.0 
CHESAPEAKE 
1952 Al<6 -— 43.9 — 43.1 — SOO 5 Ol FM, a dL 
1953 46.3 -— 45.0 -—- 48.0 -- 50.9 -— 63.8 — 68.7 -- 76.9 -= 
195k, Sesh) ==) VSeS e— ONG e—— Spel a= 6055 saa 7 eC ee 
1955 43.9 =, 39.2 —_ 45.2 =a GS /h = a se 64.0 — 1365 Ea 
1956 36.3 -—= 4056 -—— A304) — 4705° == 56.12 == 68:8 9 ==" 7225 eR—— 
1957 == a= lo es WA eS GS) SS RBS AL -- -- 
1958 Alb -- 36.9 == 39.3 -- 47,0 = FOG. os 68.3 —- "QoQ. == 
Mean ne = Iing eS eh ee One ES COG eS Oe eh ce 
Maximum 49 — 46 eas 1 SD) == 2 — 69 a WS wis -- 
Mean Max.| 46.0 =- 4he3  =-- 47.3 =-- 57.6 -- 66.5 -=- The6 -- 78.5 —- 
IGEN Walia |) Staion eS ls) Be SS IGOR eS ce 
Minimum 36 = 38 ES an Ho GO) 5. 0 —— 6 — 
*Observations for the year are incomplete; extremes are for the months shown. 
