Current Date: 5/20/2026 1:09 PM
Daily Parameter Report
5/20/2026
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Summary
Parameter SiteName Avg Max Hr. of
01 OZONE PPM ALPINE .069 .069 C C .061 .055 .051 .051 .054 .060 .065 .071 .073 .061 .073 12
CHULA VISTA .027 .037 C C .022 .019 .023 .028 .036 .050 .057 .057 .054 .037 .057 10
DOWNTOWN SE .037 .041 C C .018 .011 .019 .027 .037 .044 .047 .049 .049 .034 .049 11
EL CAJON LES C .018 .017 .021 .017 C .026 .028 .039 .049 C .062 .067 .034 .067 12
KEARNY MESA .025 .018 C C .007 .007 .021 .030 .043 .053 .056 .060 .066 .035 .066 12
OTAY MESA DVN .035 .034 C C .017 .017 .028 .033 .042 .050 .066 .067 .066 .041 .067 11
PENDLETON .033 .027 C C .022 .023 .029 .040 .046 .049 .051 .053 .055 .038 .055 12
03 NO2 PPB ALPINE 2.6 2.4 C C 5.0 5.9 5.9 7.3 4.2 4.9 4.6 5.6 5.5 4.9 7.3 07
CARMEL MT RCH 17.4 14.9 C C 24.5 14.8 23.5 16.4 20.4 13.0 11.7 11.9 8.2 16.0 24.5 04
CHULA VISTA 6.6 3.2 C C 7.5 8.5 8.9 7.6 7.1 4.1 3.1 2.1 1.9 5.5 8.9 06
DOWNTOWN SE 5.3 4.4 C C 11.9 16.3 13.1 10.8 8.6 8.1 8.3 6.6 6.1 9.0 16.3 05
EL CAJON LES C 18.4 18.4 14.0 15.0 C 16.3 21.8 19.9 18.8 C 19.2 13.1 17.4 21.8 07
KEARNY MESA 10.6 11.4 C C 18.6 18.3 12.1 10.9 9.0 6.0 3.6 3.2 2.2 9.6 18.6 04
OTAY MESA DVN 3.5 3.5 C C 12.9 16.3 13.4 14.4 9.6 6.6 2.7 2.2 2.1 7.9 16.3 05
PENDLETON 7.3 8.6 C C 13.0 10.0 8.0 5.0 3.3 2.4 2.3 2.0 2.1 5.8 13.0 04
SAN YSIDRO 12.7 15.3 C C 8.7 9.3 8.6 9.8 8.1 M M M 3.3 9.4 15.3 01
06 CO PPM CARMEL MT RCH .4 .4 C C .5 .5 .9 .6 .6 .5 .5 .4 .4 .5 .9 06
SAN YSIDRO .4 .4 C C .4 .4 .4 .4 .4 M C C .2 .4 .4 00
07 H2S PPB IB CIVIC CTR 2.1 27.6 11.9 4.8 1.0 1.0 2.1 4.5 2.2 M M M M 6.3 27.6 01
NESTOR - BES 82.1 47.1 12.7 2.8 1.2 1.4 5.6 10.6 6.4 2.8 2.7 1.3 1.4 13.7 82.1 00
SAN YSIDRO 1.4 2.5 .7 .8 1.1 1.6 2.1 7.9 8.7 4.2 1.5 1.0 1.0 2.6 8.7 08
10 INTMP °C ALPINE 26 27 27 26 27 27 27 26 25 25 24 25 24 26 27 01
CARMEL MT RCH 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 00
CHULA VISTA 25 25 24 24 25 25 25 25 24 24 24 24 24 24 25 00
DOWNTOWN SE 25 25 25 25 25 25 25 25 25 24 24 24 24 25 25 00
EL CAJON LES 26 26 26 26 26 27 26 26 26 26 26 26 25 26 27 05
KEARNY MESA 24 24 24 25 24 24 24 24 24 24 24 24 24 24 25 03
OTAY MESA DVN 24 24 24 24 24 24 24 25 24 24 24 24 23 24 25 07
PENDLETON 26 26 26 26 26 26 26 25 25 25 25 25 25 26 26 00
SAN YSIDRO 25 25 25 25 25 25 25 25 24 24 24 24 24 25 25 00
10 INTMP °C        IB CIVIC CTR 26 27 26 27 27 26 26 26 25 24 23 24 23 25 27 01
NESTOR - BES 26 26 27 26 26 26 26 26 25 25 25 25 24 26 27 02
11 PM2.5 µg/M3 ALPINE 6.8 6.6 8.7 11.3 10.8 9.2 8.6 7.9 7.4 9.4 10.5 13.4 16.4 9.7 16.4 12
CARMEL MT RCH 20.3 19.5 16.6 15.8 16.9 16.7 20.3 21.2 22.3 22.4 20.7 17.8 18.4 19.1 22.4 09
CHULA VISTA 21.6 24.0 23.4 22.9 19.9 20.7 21.8 25.0 34.4 33.3 29.7 25.8 23.0 25.0 34.4 08
DOWNTOWN SE 25.9 26.0 27.8 29.8 31.9 33.5 32.3 34.5 33.3 31.1 28.1 25.3 23.2 29.4 34.5 07
EL CAJON LES 22.3 24.8 28.0 17.1 14.3 14.1 14.6 17.8 18.0 18.4 20.0 24.5 18.1 19.3 28.0 02
KEARNY MESA 25.2 30.6 27.7 25.6 26.8 29.2 28.1 33.1 27.9 26.0 28.5 21.4 18.7 26.8 33.1 07
Current Date: 5/20/2026 1:09 PM
Daily Parameter Report
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Summary
Parameter SiteName Avg Max Hr. of
OTAY MESA DVN 24.1 19.8 18.0 36.4 37.0 34.6 31.7 34.0 29.2 26.8 22.3 20.7 17.5 27.0 37.0 04
PENDLETON 19.2 18.2 15.5 14.2 14.6 15.6 19.6 24.9 23.9 24.3 24.8 22.3 22.4 19.9 24.9 07
SAN YSIDRO 28.5 28.3 26.0 24.4 28.9 31.3 27.7 32.8 38.9 37.1 30.9 27.0 25.1 29.7 38.9 08
12 VWDR ° ALPINE 58 7 100 9 116 106 108 229 283 290 286 284 267 0 290 09
CHULA VISTA 115 84 61 80 95 122 216 276 250 253 267 258 265 0 276 07
DOWNTOWN SE 194 148 69 74 90 98 70 199 204 220 196 202 213 0 220 09
EL CAJON LES 146 105 105 81 250 104 319 334 293 282 241 227 246 0 334 07
KEARNY MESA 98 107 100 62 67 74 111 308 216 236 240 269 279 0 308 07
OTAY MESA DVN 7 7 18 95 109 94 355 295 315 284 291 293 290 0 355 06
PENDLETON 75 66 65 71 69 59 58 161 226 213 236 247 252 0 252 12
13 SIGTHETA ° ALPINE 31 46 42 46 16 19 15 36 20 22 24 25 30 29 46 01
CHULA VISTA 47 62 22 16 17 0 33 53 29 23 23 22 23 28 62 01
DOWNTOWN SE 22 35 14 30 56 15 57 38 22 23 22 22 21 29 57 06
EL CAJON LES 55 44 17 31 36 22 47 59 61 27 29 24 P 38 61 08
KEARNY MESA 14 9 18 11 8 45 46 60 42 28 18 19 15 26 60 07
OTAY MESA DVN 10 8 34 16 16 39 41 34 16 13 13 16 14 21 41 06
PENDLETON 6 7 6 7 8 9 10 34 18 18 14 10 13 12 34 07
14 VWSP MPH ALPINE 1.2 .7 .6 1.4 1.9 2.4 2.1 1.3 4.4 5.6 6.4 7.6 7.5 .0 7.6 11
CHULA VISTA 1.3 .9 2.1 3.1 1.6 1.4 .7 1.6 3.5 5.1 5.8 7.1 6.8 .0 7.1 11
DOWNTOWN SE 1.8 .8 1.9 1.4 1.1 2.0 .8 2.5 4.4 5.9 6.9 7.4 7.2 .0 7.4 11
EL CAJON LES .5 1.1 1.6 1.1 .3 1.1 .6 1.2 1.6 4.3 5.4 7.6 7.9 .0 7.9 12
KEARNY MESA 1.8 2.6 2.1 2.6 2.3 2.1 1.2 1.7 3.2 5.7 8.6 9.2 10.5 .0 10.5 12
OTAY MESA DVN 3.5 4.1 1.4 2.4 2.2 1.2 .9 2.1 5.2 7.3 7.8 8.9 10.0 .0 10.0 12
PENDLETON 4.7 5.7 5.9 6.0 4.8 5.4 5.8 1.5 4.5 5.6 6.5 7.1 7.1 .0 7.1 11
15 SWSP MPH ALPINE 1.3 1.0 1.0 2.0 2.0 2.5 2.2 2.6 4.8 6.0 6.9 8.3 8.5 3.8 8.5 12
CHULA VISTA 1.8 1.6 2.3 3.2 1.9 1.4 1.9 2.4 3.9 5.5 6.3 7.6 7.3 3.6 7.6 11
DOWNTOWN SE 1.9 1.3 1.9 1.5 1.3 2.1 1.4 3.1 4.8 6.4 7.4 7.9 7.8 3.8 7.9 11
EL CAJON LES 1.1 1.3 1.7 1.2 .7 1.3 1.3 1.9 2.7 4.9 6.0 8.3 9.1 3.2 9.1 12
KEARNY MESA 1.9 2.7 2.4 3.0 2.3 2.3 1.6 2.7 4.2 6.3 9.0 10.1 10.9 4.6 10.9 12
OTAY MESA DVN 3.7 4.2 1.9 2.5 2.5 2.1 1.3 2.9 5.6 7.5 8.0 9.3 10.3 4.8 10.3 12
PENDLETON 4.8 5.8 6.0 6.0 4.8 5.5 5.9 3.4 4.8 5.9 6.8 7.2 7.3 5.7 7.3 12
16 AMBTEMP °F ALPINE 65.1 65.1 64.9 66.2 64.2 64.4 69.8 74.7 76.8 78.1 79.6 81.1 80.9 71.6 81.1 11
CARMEL MT RCH 61.1 59.9 58.9 58.1 57.9 58.0 62.9 66.8 72.0 76.8 80.0 80.1 80.9 67.2 80.9 12
CHULA VISTA 62.6 63.3 62.2 60.9 60.1 59.9 59.8 60.9 65.7 68.4 70.2 71.4 72.0 64.4 72.0 12
DOWNTOWN SE 62.9 62.7 62.4 61.0 60.1 59.5 61.2 64.6 66.5 69.7 71.7 73.2 74.0 65.3 74.0 12
EL CAJON LES 61.6 59.8 58.4 56.7 55.6 55.9 61.5 67.6 73.7 79.0 82.3 82.8 83.0 67.5 83.0 12
KEARNY MESA 59.9 59.1 59.7 57.3 56.4 57.4 61.8 66.6 71.7 76.4 79.0 80.2 78.8 66.5 80.2 11
OTAY MESA DVN 60.7 59.8 57.8 58.3 58.3 58.0 62.2 67.4 71.0 74.4 75.6 77.3 77.3 66.0 77.3 11
PENDLETON 61.5 60.1 59.1 57.6 58.6 58.9 61.1 65.0 66.1 67.1 68.2 69.2 70.8 63.3 70.8 12
Current Date: 5/20/2026 1:09 PM
Daily Parameter Report
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Summary
Parameter SiteName Avg Max Hr. of
SAN YSIDRO 61.9 61.5 61.1 60.4 60.2 60.1 60.3 62.3 66.2 70.3 72.5 74.9 75.3 65.2 75.3 12
17 RELHUM % ALPINE 27 26 27 24 24 22 18 16 16 18 19 24 28 22 28 12
EL CAJON LES 78 89 97 83 80 75 58 48 39 33 34 41 31 60 97 02
KEARNY MESA 87 96 97 99 95 94 93 78 60 48 49 37 33 74 99 03
18 PRES mmHg EL CAJON LES 748 748 748 747 747 748 748 747 747 747 747 746 746 747 748 00
KEARNY MESA 749 748 748 748 748 748 748 748 748 748 748 747 747 748 749 00
19 SOLAR W/M2 EL CAJON LES -1 -1 0 -2 1 89 291 509 716 885 994 1032 1025 426 1032 11
KEARNY MESA 2 1 1 1 4 64 282 518 737 906 1012 1059 1036 433 1059 11
20 UVRAD W/M2 EL CAJON LES 0 0 0 0 0 4 14 25 37 46 52 55 54 22 55 11
25 NOY EL CAJON LES 6.36 5.68 5.06 69.54 6.69 10.92 12.44 17.10 13.36 10.09 10.02 9.45 5.74 14.03 69.54 03
26 NOY-NO EL CAJON LES 6.28 5.65 5.04 69.50 6.53 9.37 9.20 11.65 10.01 8.05 8.23 8.00 5.01 12.50 69.50 03
27 NO Trace EL CAJON LES .08 .03 .02 .03 .16 1.55 3.23 5.44 3.34 2.03 1.79 1.45 .73 1.52 5.44 07
28 SO2 Tr PPB EL CAJON LES C .0 .0 .0 .0 C .0 .1 .1 .1 C .2 .1 .0 .2 11
29 CO Tr PPB EL CAJON LES C 296.0 293.1 248.3 266.9 C 326.5 426.7 410.1 386.1 C 298.5 242.9 319.5 426.7 07
BCarbon ug/m3 10TH AVE MARIN .40 .46 < .99 1.05 < 1.00 .87 .75 .88 .75 .67 .54 .76 1.05 04
ALPINE .21 .20 .34 .43 .48 < .47 .42 < < .43 .44 .47 .39 .48 04
BOSTON AVE .59 .47 .52 .84 1.31 .99 .95 1.20 1.26 1.02 .96 .84 .83 .91 1.31 04
CHICANO PARK .46 < .56 < < < .88 .91 .99 < .80 .85 < .78 .99 08
DOWNTOWN SE .75 .58 .54 < .71 .92 .92 1.06 1.12 < .90 .77 < .83 1.12 08
OCEANVIEW BLV .45 < .48 .55 .73 .91 < .97 < < < .78 < .70 .97 07
OTAY MESA DVN .70 .69 1.06 < 3.60 < 2.32 3.00 1.88 1.25 .82 .68 .44 1.49 3.60 04
SAN YSIDRO < < < .69 .87 < .85 1.23 1.30 1.03 < .57 .47 .88 1.30 08
PM10 STD ALPINE 20.9 18.6 21.3 26.4 25.8 24.3 23.3 20.5 18.5 28.4 28.8 32.7 39.0 25.2 39.0 12
CARMEL MT RCH 38.3 38.9 31.8 30.2 35.7 33.6 40.8 42.6 45.9 46.0 43.6 39.8 39.2 38.9 46.0 09
CHULA VISTA 42.5 47.3 44.1 36.0 26.0 28.9 33.2 40.1 60.1 62.6 57.2 51.7 45.1 44.2 62.6 09
DOWNTOWN SE 44.2 43.6 47.3 49.3 51.2 55.1 53.5 63.3 64.7 58.1 55.7 52.9 47.5 52.8 64.7 08
EL CAJON LES 38.9 41.7 43.9 28.6 24.7 26.8 32.9 43.7 41.9 41.7 44.6 52.8 41.8 38.7 52.8 11
KEARNY MESA 46.4 47.9 41.3 37.6 41.8 48.6 47.9 64.3 60.8 59.6 61.9 49.2 42.5 49.9 64.3 07
OTAY MESA DVN 89.1 55.8 43.6 83.7 90.2 103.4 127.6 92.6 74.2 72.6 63.6 60.0 50.7 77.4 127.6 06
PENDLETON 38.3 35.7 32.1 31.3 31.0 33.0 41.5 54.3 47.3 43.0 42.6 40.1 42.8 39.4 54.3 07
SAN YSIDRO 61.9 55.0 46.0 37.3 50.2 46.8 39.7 52.7 67.2 73.0 62.7 55.8 52.0 53.8 73.0 09
RAINFALL EL CAJON LES .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 00